A British security official said the situation involving the Pakistan International Airlines flight did not appear terror-related, though police were still investigating. But the incident further rattled Britain just days after a soldier was killed on a London street in a suspected terror attack.
The security official requested anonymity because he was not authorized to discuss the investigation.
A Pakistani official briefed by British police and airline security on the investigation said the two suspects, speaking Urdu, allegedly threatened to "destroy the plane" after an argument with the crew. The official spoke on condition of anonymity because he was not authorized to speak about the case on the record.
Flight P709 was traveling from Lahore, Pakistan, to Manchester Airport when it was diverted by the fighter jets to Stansted Airport. Britain's Ministry of Defense confirmed that Typhoon jets were launched to investigate an incident involving a civilian aircraft but gave no further details.
Passenger Nauman Rizvi told Pakistan's GEO TV that two men who had tried to move toward the cockpit during the flight were handcuffed and arrested once the plane landed. Rizvi said that after the men were taken away the flight crew told passengers there had been a terrorist threat and that the pilot had raised an alarm.
Essex police said they were notified at 1:20 p.m. local time that a threat had been made to an aircraft. The force said that after the
The suspects were taken to a police station where they face questioning, the police said in a statement. The plane will be examined by forensic specialists but no suspicious items have been recovered so far, police added.
"This incident is being treated as a criminal offense," the police statement said, in another indication it was not being seen as a terror case.
Mashood Tajwar, a spokesman for airline, said 297 passengers and 11 crew members were on the plane. By late afternoon Friday, passengers had disembarked from the aircraft and were being interviewed, according to Mark Davison, a spokesman for Stansted Airport.