The Turkish-owned Alfa Watan sank in the Black Sea after an unmanned air and sea vehicle attack. Bulgarian Prime Minister Rumen Radev announced that all 10 crew members died.
Radev said the attack occurred about 112 kilometres off the eastern coastal town of Byala at around 03:00 local time. The Togo-flagged ship was carrying grain and was sailing to Romania's Sulina Port. Search and rescue efforts have ended.