* Air India says received bomb threat about flight
* British fighters escort the plane to London
* Flight from Mumbai to Newark in U.S.
* British police making inquiries (Recasts headline and lead)
By Aditi Shah and Costas Pitas
NEW DELHI/LONDON, June 27 (Reuters) - An Air India passenger plane flying to the United States was escorted by British fighter jets to land in London on Thursday after what an official at the airline later said was a hoax bomb threat.
An Air India official said flight AI 191 from Mumbai to Newark had made a precautionary landing at London Stansted Airport after a hoax telephone call was made to Mumbai airport.
The official told Reuters there was no security threat.
Britain scrambled Typhoon fighters at supersonic speed to intercept the Boeing 777-337 and safely escorted it to Stansted, which briefly closed its runway.
The Air India plane was directed to an isolated stand with police in attendance.
"An Air India Boeing 777 diverted into London Stansted Airport at approximately 1015 and landed safely with Essex Police in attendance. It is parked on an isolated stand away from the normal airport operations," the airport said.
"Our runway has now re-opened and is fully operational following a precautionary landing of Air India flight," it said.
British police said officers were making inquiries. (Reporting by Aditi Shah, Costas Pitas and Kate Holton; Editing by Sanjeev Miglani/Guy Faulconbridge)