Russian drones attacked two merchant ships in the Black Sea off the coast of Bulgaria, sinking one vessel. The crew of the Chelsea 3, registered in Odesa under the flag of Malta, was rescued. The ship carried 15 people: seven Ukrainians and eight Azerbaijanis. Five sailors are receiving medical attention.

The second vessel also sank. The Prime Minister of Bulgaria stated that there is currently no conclusive evidence regarding the origin of the drones. Sofia intends to request assistance from NATO to enhance maritime and air space surveillance.