Two merchant vessels have been attacked by aerial and maritime drones in Bulgaria’s exclusive economic zone in the Black Sea, sinking one ship and forcing the evacuation of another. The incident follows a deadly attack on a grain carrier off Romania a day earlier and has prompted concern over the growing risks to civilian shipping close to EU and NATO territory.

Two commercial vessels were struck by drones in Bulgaria’s exclusive economic zone early on Tuesday, 6 October, in the first known attack of its kind on merchant shipping in Bulgarian waters.

The Togo-flagged ALFA WATAN suffered severe structural damage and sank, while the Palau-flagged ABLE caught fire. Bulgarian Prime Minister Rumen Radev said the vessels were attacked at around 3am by both aerial and maritime drones about 70 nautical miles east of the coastal town of Byala. The Bulgarian government said a search-and-rescue operation was continuing for the crew of the ALFA WATAN, whose fate remained unknown.

All 18 people aboard the ABLE were rescued after abandoning the burning vessel. The Bulgarian-flagged passenger and freight ferry DIOSCURIA was diverted to the area and initially took the crew on board before Bulgarian Navy and Border Police vessels transferred them towards Varna.

The crew comprised 11 Turkish and seven Indian nationals. Two sailors were taken to hospital, including an Indian crew member suffering from burns and the Turkish captain, who sustained a head injury. Bulgarian public broadcaster BNT reported that the remaining 16 sailors subsequently arrived safely in Varna for medical checks.

The ABLE was reportedly carrying grain towards Istanbul. The cargo aboard the ALFA WATAN, which had been heading north towards Romania, has not been officially established.

Radev convened an emergency meeting involving the ministries of defence, interior, transport and environment, alongside the presidency and Bulgaria’s security services. He described the attack as an unacceptable violation of international and maritime law and warned of its effect on commercial navigation in the Black Sea.

Bulgarian authorities have not publicly identified who launched the drones. Investigations are examining both the weapons used and the circumstances surrounding the attack. One rescued Turkish sailor told Bulgarian television that he believed the ABLE had been hit by a Russian underwater drone, but that account has not been independently established and Sofia has made no formal attribution.

Foreign Minister Velislava Petrova said Bulgaria was in contact with its European and NATO partners and described Black Sea security as inseparable from wider European security. She said civilian crews and freedom of navigation must be protected and that Bulgaria would work with its allies to assess the wider consequences for maritime security.

European Commission President Ursula von der Leyen also condemned attacks against civilian shipping, saying the situation in the Black Sea was becoming increasingly concerning. She said commercial vessels and their crews were being targeted as investigations continued into the latest incidents.

Tuesday’s attack came less than 24 hours after another commercial vessel caught fire and sank in Romania’s exclusive economic zone. The Turkish-owned Royad Mammadov, sailing under the flag of Saint Kitts and Nevis, had left the Ukrainian Danube port of Izmail carrying corn for Ravenna in Italy.

Romanian authorities confirmed that two people died and 11 crew members were rescued. President Volodymyr Zelenskyy said the vessel had been struck by two Russian drones, although Romanian authorities did not themselves publicly attribute the incident to Russia.

The two incidents in consecutive days mark a further geographical expansion of the risks facing commercial shipping in the western Black Sea. EU Today has previously reported how strikes near Romania have moved maritime war risks closer to NATO territory, while a separate maritime drone explosion at Constanța raised questions over the ability of coastal states to detect and respond to unmanned systems approaching commercial infrastructure.

The distinction between territorial waters and an exclusive economic zone remains important. The attacks occurred outside Bulgaria’s territorial sea and therefore do not amount simply to an attack on Bulgarian territory. They nevertheless took place in an area where Bulgaria has internationally recognised economic rights and responsibilities, including search-and-rescue and environmental obligations.

The immediate concern for Sofia is the search for the missing crew of the ALFA WATAN and the possibility of pollution from the wreck. The wider concern for the EU is the increasingly exposed position of civilian shipping routes linking Ukraine, Romania, Bulgaria and Turkey.

Ukraine’s maritime export routes remain particularly important for agricultural trade. Repeated attacks on merchant vessels can increase insurance premiums, discourage shipowners from entering the region and raise transport costs even when ports themselves remain operational. Russian attacks on Odesa and its export infrastructure have already placed Ukraine’s Black Sea grain corridor under sustained pressure.

With merchant ships now struck in the economic zones of both Romania and Bulgaria on consecutive days, Black Sea maritime security has moved further onto the agenda of EU and NATO governments along the western coast.

Germany is expanding drone detection at its airports with a new system operated by German air traffic control provider Deutsche Flugsicherung (DFS), the German Federal Ministry for Transport (BMV) announced on 5 October.

Germany has accused Russia of attempting a hybrid attack at Germany’s Leipzig/Halle Airport near a Ukrainian An-124 aircraft using a drone carrying explosives. Earlier, Finnish President Alexander Stubb said Europe must be prepared for “continued hybrid and sabotage attacks” by Russia, adding that Russia seeks to sow panic through such actions.

On Monday, two more sites were added—Stuttgart and Hamburg. As of Monday, seven of Germany’s eight largest airports were equipped with the new drone detection system in their approach and departure areas.

Germany seeks responses to new hybrid threats

The Federal Ministry cited the reason for the new measure: drones near airports can affect air traffic very quickly.

Federal Transport Minister Steffen Bilger and Baden-Württemberg Transport Minister Nicole Razavi were briefed on the new system at Stuttgart Airport, where it is being put into operation, the ministry said. The system creates “an important technical basis for detecting potential threats at an early stage and quickly informing the competent authorities,” Bilger said.

“With today’s commissioning of the drone detection system at Stuttgart Airport, the federal government is fulfilling a key promise: it is not only talking about the dangers posed by unmanned aircraft, but is also following through with very concrete action. Protecting critical infrastructure and ensuring the safety of passengers at Stuttgart Airport require continuous adaptation to a changing security situation,” Razavi said, according to the ministry.

The new DFS system allows drones near airports to be detected at an early stage and information about possible threats to air traffic to be passed more quickly to the relevant authorities. This helps them assess risks and respond to them more quickly, the statement said.

DFS is responsible for detecting drones in approach and departure areas, while the Federal Police and other security services are responsible for preventing threats and defending against drones. The BMV, Federal Ministry of the Interior, DFS, Federal Police and airports coordinate their work to exchange information quickly and maintain a shared picture of the situation.

No further details about how the system operates have been disclosed.

The first stage of the expansion at Germany’s eight major commercial airports will be fully implemented this week, with the systems in Stuttgart and Hamburg being put into operation, the statement said.

The system will also be installed at the airport where a bomb-laden drone was found

The system will also be put into operation at Leipzig/Halle Airport this week, meaning that the first stage will be fully implemented at all eight of Germany’s largest commercial airports, according to the press release.

A quadcopter drone carrying a Semtex explosive flew directly toward a parked Ukrainian An-124 Ruslan cargo aircraft and struck its wing at Leipzig/Halle Airport in Germany on the evening of 4 August, Die Zeit reported on 10 August. The drone hit the aircraft at around 19:30 local time, bounced off the wing, and fell to the ground without detonating, according to the media outlet.

Germany has accused Russia of attempting the drone attack and announced further sanctions against Russian citizens and institutions, Tagesschau reported on 1 September.

At the crime scene, investigators found the drone configuration, explosives and detonation technology that had already appeared in other Russian hybrid operations and in Russia’s war against Ukraine, Federal Interior Minister Alexander Dobrindt said during a joint press conference with Federal Foreign Minister Johann Wadephul, the media outlet reported.

The German government assumes that Germany has been and will be a target of further such Russian attacks. Germany is not at war with Russia but is a “target of war,” Foreign Minister Wadephul said, according to the outlet.

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France and Germany have proposed giving the European Commission powers to respond within days to serious trade distortions, including the possibility of restricting access to the EU single market. The initiative comes as European concern grows over Chinese subsidies, industrial overcapacity and dependence on critical imports.

French President Emmanuel Macron and German Chancellor Friedrich Merz have called for a new European Union trade instrument capable of acting rapidly against countries whose economic practices cause serious disruption to the European market.

In a joint initiative sent to European Commission President Ursula von der Leyen on Monday, the two governments proposed strengthening the EU’s ability to respond to what they describe as systemic market distortions, including dumping, widespread subsidies and restrictions affecting access to critical supplies.

The Franco-German proposal does not formally identify China as its target. However, many of the practices it describes correspond directly to long-standing European concerns over Chinese industrial policy, including excess manufacturing capacity, state support and restrictions on exports of critical minerals.

The initiative represents a further development in a harder European approach towards Beijing. EU Today reported last week that China had warned it would respond if the EU introduced new restrictions against Chinese companies or products.

Macron and Merz are proposing two additional instruments.

The first would be intended to reduce European companies’ dependence on single suppliers for strategically important products and raw materials. The second would allow the EU to restrict access to its internal market when a third country uses political or economic measures that seriously undermine fair competition.

Under the proposal, the Commission could initiate countermeasures unless a qualified majority of EU governments voted to block them. That would reverse the normal political dynamic in which Brussels must first secure sufficient support before acting.

German officials have argued that the EU needs powers comparable in effect to the United States’ Section 301 trade measures or China’s ability to restrict exports of critical raw materials.

The Commission has welcomed the Franco-German intervention as a contribution to its work on economic security and global trade imbalances. Any new instrument would, however, require legislation and approval by both EU governments and the European Parliament before it could be used.

The proposal comes amid growing concern in both Paris and Berlin over the effect of subsidised Chinese production on European manufacturers.

Germany’s position is particularly significant. Berlin has traditionally been more cautious than Paris about measures that could restrict trade with China, reflecting the importance of the Chinese market to German carmakers, engineering companies and chemical producers.

That position has shifted as German industry faces increased competition from Chinese electric vehicles, machinery and other manufactured goods.

EU Today has previously examined the emerging Franco-German alignment on tougher China trade defences and demands from German manufacturers for broader European action rather than product-by-product investigations.

The new proposals go considerably further by seeking a mechanism capable of dealing with entire sectors and acting much more quickly than conventional anti-dumping proceedings.

Chemicals, PET plastics and hybrid vehicles are among sectors identified in the Franco-German document as areas where additional action may be required.

The timing is also significant. EU leaders are due to discuss trade relations with China at their summit in Brussels on 15–16 October, while Trade Commissioner Maroš Šefčovič is expected to hold talks with Chinese officials beforehand.

The Commission is already attempting to balance two objectives: maintaining Europe’s access to the Chinese market while reducing strategic dependencies that could be used as political leverage.

The Franco-German plan would give Brussels another instrument at the more coercive end of that policy. Its eventual importance will depend on whether governments agree to create it and how readily they would permit the Commission to use it against a major trading partner.

EU foreign policy chief Kaja Kallas has warned that Russia is intensifying hybrid operations across Europe, citing sabotage attempts, airspace violations and Russian drones and missiles crossing into Moldovan territory.

Her intervention adds pressure for a more coordinated European response to hostile activity below the threshold of conventional warfare.

Russia is putting lives at risk across Europe through an expanding campaign of hybrid activity, EU foreign policy chief Kaja Kallas said on Monday, after another series of Russian drones and missiles entered Moldovan airspace.

Speaking in Brussels alongside Moldovan Prime Minister Vasile Tofan and Enlargement Commissioner Marta Kos, Kallas said Europe had experienced an increase in sabotage attempts and airspace violations during recent weeks.

“Russian missiles and drones violated Moldovan airspace again over the weekend,” she said, describing the incidents as unacceptable.

According to the official EU record of the press conference, Kallas said the Kremlin was seeking to create fear and interfere with European decision-making, and argued that the response should include greater resilience and continued support for Ukraine.

Her remarks follow Russia’s renewed large-scale attacks against Ukraine’s energy system and continued reports of drones crossing borders beyond Ukrainian territory.

Moldova’s defence authorities reported that three drones entered Moldovan airspace during Russia’s 30 September attack on Ukraine. Moldova, which shares a long border with Ukraine and is seeking EU membership, has repeatedly accused Moscow of attempting to destabilise the country.

The latest incidents broaden a European debate that has been developing for months: how governments should respond to hostile operations that are deliberate and potentially dangerous but fall short of an overt military attack.

EU Today reported on 28 September that European governments were discussing an emergency security protocol intended to improve coordination when member states face sabotage and other hybrid threats.

That followed earlier warnings concerning suspected attacks on infrastructure, cyber operations, interference campaigns and airspace violations across several European countries.

The problem is partly one of attribution and partly one of thresholds.

A conventional armed attack on a NATO member may trigger consultation under Article 4 or, in sufficiently serious circumstances, collective defence provisions under Article 5. The European Union also has its own mutual assistance provision under Article 42.7 of the Treaty on European Union.

Hybrid activity is frequently designed to remain below those thresholds.

Cyberattacks, covert sabotage, GPS interference, disinformation, drones and operations conducted through intermediaries can impose costs without giving governments an obvious basis for a military response.

Kallas’s warning comes as Germany has also reported an increase in activity it attributes to Russia.

Chancellor Friedrich Merz has warned that Germany faces growing hybrid pressure involving drones and cyber operations. European security services have separately investigated suspected Russian involvement in sabotage and attacks on infrastructure in several countries.

Moscow has denied Western accusations that it is directing such operations.

The EU has already used sanctions against individuals and entities accused of Russian hybrid activity, while governments are considering faster systems for sharing intelligence and attributing incidents.

EU Today examined the debate in September as the European Parliament considered proposals for quicker attribution, stronger intelligence-sharing and improved protection of critical infrastructure.

Moldova occupies a particularly exposed position.

The EU has provided €317 million through the European Peace Facility for Moldovan defence modernisation, according to Kallas, including €120 million allocated in 2026 for air defence. Brussels is also supporting Moldova through its EU Partnership Mission, which provides assistance against hybrid and cyber threats.

Unlike Ukraine, Moldova is not a NATO member and has constitutional neutrality. Its ability to counter Russian missiles or drones entering its airspace is therefore closely connected to the development of its own detection and air-defence capabilities.

For the EU, repeated incidents involving Moldova, NATO airspace and European infrastructure are increasingly being considered as parts of the same security problem rather than isolated events.