Bulgaria summons Russian ambassador after ship sinks in Black Sea drone attack

Bulgarian Prime Minister Rumen Radev has summoned the Russian ambassador after two merchant ships were struck by drones off Bulgaria's Black Sea coast and one of them sank. Six crew members on the Guinea-Bissau-flagged HS Dignity were rescued and 10 others are missing, according to Defence Minister Dimitar Stoyanov, after it went down 17 nautical ...