A 58-year-old American man has been charged with mischief after U. S. Customs and Border Protection says a "mock improvised explosive device" was found during the inspection of a traveller's suitcase at Pearson International Airport on Thursday.
The Greater Toronto Airports Authority, which oversees the running of the airport, said the incident aboard the United airlines flight did not impact other airport operations.
Gemmel said he and fellow passengers were taxied to an isolation area where they were searched by American and Canadian border authorities before being released. The plane sat on the tarmac as passengers waited on board.
The flight was scheduled to depart at 7:00 a.m. today, but was delayed almost seven hours before taking off.
Officials previously said that they were investigating a "major security breach" involving a Chicago-bound flight plane that had its pre-clearance privileges revoked.
U.S. Customs officials inspected the aircraft and re-screened all of the passengers and their baggage before giving the all-clear.
Peel Regional Police Const. Harinder Sohi confirmed their officers and K9 Unit were on site assisting with the U.S. Customs and Border Control investigation.
It is unclear why the passenger tried to bring the device aboard the flight. The flight was supposed to depart Pearson International Airport for O'Hare International Airport in Chicago at 7 a.m. on April 6, 2017.
"It is a little nerve-racking because the plan has changed several times", Troy Galick said.
"Shortly later they announced there was a security issue and then it turned into a serious security issue".
They were then told of the real reason, CTV reports.
CTV said passengers were initially told the delay was due to weather conditions in Chicago.