A missile was released from a Russian aircraft near an unarmed RAF plane on a routine patrol over the Black Sea, the defence secretary has said.
Ben Wallace said the incident took place on 29 September and said Russia has acknowledged the incident took place in international airspace.
Russia said the incident was a “technical malfunction”.
The British defence secretary called it “potentially dangerous”.
UK patrols over the Black Sea were initially suspended, but have now resumed and are escorted by fighter aircraft, Mr Wallace added.