"There are no reports of an explosion and police are looking into the incident".
The police said that there is no cause for concern. "Heard a loud explosion and police sirens around 4:10 am".
Hundreds of United Kingdom residents reported the boom across London around 4.20am local time.
The sound was due to two RAF Typhoon jets escorting a Jet2 flight to land because a 25-year-old woman was arrested on suspicion of assault and endangering an aircraft, according to the publication.
The RAF website has a detailed run-down of what happens with a "quick reaction alert", explaining that information is collated from radar sites across the United Kingdom and from civilian air traffic and intelligence agencies, before the decision is made whether the threat is sufficient to scramble Typhoon jets.
"The loud bang heard in North London and surrounding areas was the result of a sound boom of RAF aircraft".
We're presently receiving numerous calls from throughout the entire of Hertfordshire relating to a big explosion sound.
The Met stated that there was "no cause for concern".
An explosion-like sound was heard across parts of London, with people living in Essex, north and west London and Stevenage among those tweeting to say they had been woken up by the noise.
"Typhoon aircraft from RAF Coningsby were scrambled this morning, as part of the UK's Quick Reaction Alert (QRA) procedures, after an aircraft lost communications in United Kingdom airspace", the spokeswoman said, according to the BBC.
"The aircraft was intercepted and its communications were subsequently re-established". The Typhoons have now returned to their base. "Heard a loud plane noise soon after", he wrote, adding that it was "maybe just a sonic boom".
Earlier this year, two RAF Hurricane fighter jets precipitated sonic booms over the east of England.