Londoners reported waking up in the early hours of Sunday morning to a loud bang, caused by supersonic fighter jets.
At 4am in the morning, two Typhoon fighter jets were scrambled over the UK capital in what the Ministry of Defence said was "the UK's Quick Reaction Alert (QRA) procedures, after an aircraft lost communications in UK airspace."
The loud noise was a shock for sleepy residents whose windows were rattled and car alarms set off, with one telling the Guardian newspaper he "thought something had fallen down in our house."
However this shock was nothing compared with that of the pilot who had caused the commotion, when he saw the supersonic jets intercept his plane.