Colleagues asked their Hungarian counterparts to explain their position, but they did not, one diplomat said.

Moldova has announced an investigation into concerns that Russian tech giant Yandex has been harvesting the personal data of its citizens by sending it directly to servers in Russia rather than storing it in the Netherlands as previously believed.

The two Ukrainian border guards had entered Moldova in a motorboat on Oct. 15 while attempting to detain a Ukrainian man crossing the Dniester River near Holosnita, along the Vinnytsia Oblast border.