TORONTO (Reuters) - An American man was arrested and charged with mischief after airport officials found a “mock improvised explosive device” in a suitcase on a United Airlines flight bound from Toronto to Chicago, Canadian police said on Thursday.

The suspect, identified as Joseph Galaska, 58, was held for a bail hearing. Police did not reveal details on his residence.

Police checked the device for explosives and determined it was not a threat, a Peel Regional police spokesman said. The Chicago O’Hare-bound flight was delayed for hours from its scheduled 7 a.m. EDT (1100 GMT) departure and all other passengers and their luggage were rescreened.