MOSCOW, November 4. /TASS/. A US Air Force Boeing RC-135U Combat Sent reconnaissance aircraft was noticed in the airspace over the Black Sea, according to data from the flight monitoring service Flightradar24.

The aircraft took off from Mildenhall Air Force Base in the UK, flew over the Netherlands, Germany, the Czech Republic, Slovakia, Hungary, and Romania, then flew over the Black Sea past Crimea and turned back.

As of 5:15 a.m. Moscow time, the aircraft was over Mildenhall Air Force Base.