Fromm BBC today:
Loud bangs heard in parts of Yorkshire were sonic booms from Typhoon jets scrambled to identify "an unresponsive civilian aircraft", the RAF has said.
The aircraft were launched from RAF Coningsby, in Lincolnshire, on Monday and helped guide an Air France plane to a safe landing in Newcastle.
People reported their houses shaking at about 21:50 BST after hearing what sounded like two loud explosions.
These were later confirmed to have been sonic booms.
An RAF spokesman said: "Quick reaction alert Typhoon aircraft were launched today from RAF Coningsby to identify an unresponsive civilian aircraft.
"Communications were re-established and the aircraft has been safely landed."
Radio problem
Reports suggested the jets had escorted the plane after it went off course.
Air France confirmed that the unresponsive civilian aircraft was one of its planes.
The airline tweeted from its official UK Twitter account: "Air France confirms that due to a radio communication problem AF 1558 had to be accompanied by two British fighter aircrafts according to the procedure.
"The aircraft landed in Newcastle at 22:20 (LT). Safety of clients & crew is an absolute priority."