STOCKHOLM — Swedish police evacuated a Pakistan International Airlines jet diverted to Stockholm due to a bomb alert Saturday and detained a passenger on suspicion of preparing aircraft sabotage, officials said.

No explosives were found on the man, who was being questioned by investigators, or on the aircraft, which was parked on a ramp at the end of a runway at Stockholm's Arlanda airport, police said.

The Boeing 777 was traveling from Toronto to Karachi when the pilot asked to land after Canadian authorities received a tip that a passenger was carrying explosives. Arlanda spokesman Anders Bredfell said there were 273 people on board.

A SWAT team detained the suspect as he was evacuated from the aircraft along with the other passengers. Police described him as a Canadian citizen of Pakistani origin, about 30, but said they had not confirmed his identity.

A spokesman for the state-owned Pakistan International Airlines said the suspect was a 25-year-old Canadian national.

The passengers were waiting at the "international holding area" at the airport as they and their luggage were scanned and searched, Hasan said. Pakistani diplomats were at the airport to coordinate with the security officials.

PIA said there were 255 passengers and 18 crew members on the plane.