Bulgarian Prime Minister Rumen Radev summoned Russia's ambassador and convened the Security Council after drone strikes overnight hit two cargo ships about 17–18 miles off the Black Sea coast, damaging one and sinking another, with several crew reported missing. Radev said there was no solid evidence of who was responsible but that the attacks appeared to benefit Russia, while European Commission President Ursula von der Leyen condemned them as unacceptable and called the Black Sea another front of Russia's war in Ukraine. It is the second such incident in a week in Bulgaria's exclusive economic zone (the waters where it holds rights over resources), and both Moscow and Kyiv denied involvement in the earlier one, raising security concerns for a NATO and EU member.