Interesting to note three Indians and a Bangladeshi national among passengers, according to following news report. Probably they chose PIA flight from Tornoto for journey to their home country or perhaps they were coming to Pakistan on visit visa.
A spokesman for the state-owned Pakistan International Airlines said the suspect was a 25-year-old Canadian national.
Police operation leader Stefan Radman said no explosives were found on the man, who was being questioned by investigators. He said a bomb squad was searching the aircraft, which was parked on a ramp at the end of a runway.
The tip was "called in by a woman in Canada," Radman said, adding that Swedish police took the threat seriously.
Police officials said the man was not on any international no-fly lists and had cleared a security check in Canada. He didn't resist when the SWAT team took him into custody.
Investigators were questioning the man at a police station, and a prosecutor was to decide whether to formally arrest him.
Jan Lindqvist, a spokesman for airport operator Swedavia, said PIA was considering flying the passengers to Manchester, England, from where they would continue their journey to Karachi.
In Pakistan, a spokesman for state-run PIA confirmed the incident involved flight PK782 to Karachi.
"The plane has landed at the Stockholm airport due to security reasons," airline spokesman Sultan Hasan said.
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. Of the passengers, 102 were Canadian nationals, 139 Pakistanis, eight U.S. citizens, three Indians and one each from Japan, Malaysia, and Bangladesh.Source: Yahoo! News