Throttling of mobile internet system will affect Kyiv’s air defences more than its strikes on oil refineries. Now Zelenskyy must be hoping that US intel holds

In Ukraine the situation was already jittery enough. Donald Trump has been inventing ceasefires and buying Russian diesel to shore up his flagging popularity, while a sinister new wave of faster, jet-powered drones are breaking through Kyiv’s stretched air defences. Casualties are rising as the weather turns.

Overnight, Russia bombed three power plants that supply Kyiv, aiming to cut off heating and electricity to the city. According to the president, Volodymyr Zelenskyy, for a second night in a row no warning came from Ukraine’s western allies of the incoming ballistic missiles – and so no air raid alert was issued.

Annual update from MI5 chief highlighted a complex cocktail that could have real-life consequences for Britain

MI5’s annual threat update covers so much ground it is easy to feel anxious. The terror threat has become more diverse, with far-right anti-migrant threats on the rise; while Iran has now firmly emerged alongside Russia as a country seeking to undertake violent and deadly plots in the UK.

“There is no law of physics dictating that rising state threats will be accompanied by diminishing terrorist threats,” MI5’s director general, Ken McCallum, said, although one of his core messages was that people and the country at large needed to focus on being more resilient. “In this new world, we should expect to be tested.”

Ken McCallum says Kremlin attempted to influence vote through social media and TV reports but had little impact

Russia did try to interfere in the Brexit referendum through social media and television reports, the head of MI5 said on Tuesday, but he added that did not mean the Kremlin had any impact on the result.

Ken McCallum endorsed comments by Andy Burnham, who raised the issue over the past two days, though he said continuing to debate it risked giving the Kremlin a needless propaganda victory.

Prime minister has reopened the debate over whether Russia sought to influence the 2016 referendum

Andy Burnham unexpectedly reopened an old Brexit debate when he said he had been told after becoming prime minister that Russia had interfered in the 2016 EU referendum.

It was a contentious issue in the second half of the previous decade, but one that had largely been forgotten about as the UK finally adjusted to the reality of leaving the EU. Now Burnham’s comments have given the topic a fresh impetus.