A plane from Bucharest was escorted into Birmingham airport by RAF fighter jets after it experienced communication difficulties.
The private plane, which contained three crew and no passengers, was met by two Typhoon jets scrambled from RAF Coningsby, Lincolnshire, and a Voyager aircraft launched from Brize Norton, Oxfordshire.
They escorted the Saab 340 plane once it entered UK air space, Birmingham Airport said.
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Its runway was closed for about half an hour while the freight-carrying plane landed just after 7.30am.
One plane from Dublin was diverted to East Midlands Airport as a result.
An RAF spokesman said: "The Royal Air Force can confirm that Typhoon aircraft from RAF Coningsby, Lincolnshire were launched this morning on a quick reaction alert mission to intercept a civilian aircraft that had lost communications.
"The aircraft was safely escorted to Birmingham International Airport."
A Birmingham Airport spokeswoman said: "We can confirm that a private Saab 340 aircraft inbound from Bucharest to Birmingham and carrying three crew encountered communication difficulties during a flight earlier today.
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"In accordance with normal operating procedures the aircraft was intercepted by military jets on arrival into UK airspace and was escorted up to its scheduled arrival into Birmingham."
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