RAF fighters were scrambled to a flight to Heathrow after a bomb threat was sent to an airline on social media. The Royal Air Force scrambled RAF Quick Reaction Alert Typhoon fighter aircraft on Thursday, with a “sonic boom” heard over Norfolk as the jets reached supersonic speeds.

Two RAF jets were scrambled after a bomb threat was reportedly made on an Air India flight to Heathrow on Thursday. The Air India Boeing 777 was flying from Mumbai to London when it sent out emergency signals over the North Sea.

The captain of the plane could be heard telling air traffic control that the aircraft had a "suspected bomb" on board.

The RAF has sent Typhoon fighter jets to intercept an Indian flight heading into London’s Heathrow Airport after it declared a ‘bomb threat’. An Air India flight from Mumbai declared an emergency earlier this afternoon.