An unruly passenger forced the grounding of a flight to Istanbul at the Montreal Pierre Elliot Trudeau Airport on Sunday night.
Police said the 25-year-old man was making threats, but they would not go into detail.
Pilots decided to turn the plane around and return to Montreal shortly after takeoff at about 9:30 p.m.
The man was arrested at the airport and the rest of the 316 passengers were able to continue their flight a few hours later.
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