BULGARIA SAYS RUSSIA WAS LIKELY BEHIND BLACK SEA DRONE STRIKES

What happened: Bulgaria said Russia was likely behind Black Sea drone attacks that struck four ships in the past week, sinking two, but said Moscow's culpability cannot be proven. Key numbers: Four ships struck, two sank, 11 crew missing, five rescued, four sailors reached Varna. Why it matters: Bulgaria requested international help for the investigation and NATO support on surveillance and drone response. Its president sought a Black Sea drone moratorium, saying the war has reached the sea.

Bulgaria said Russia was likely behind Black Sea drone attacks that struck four ships in the past week, sinking two, but said Moscow's culpability cannot be proven.

Bulgaria requested international help for the investigation and NATO support on surveillance and drone response. Its president sought a Black Sea drone moratorium, saying the war has reached the sea.