Toronto police blocked off an area in the city's financial district for several hours late Wednesday night after something resembling a military-type device was discovered by a passerby.
Members of the emergency task force and its bomb disposal squad were called in just after 8 p.m. to deal with the object.
Police sent in a robot to examine the object and determine if it was dangerous.
About an hour later, the device was put into a secure van and removed from the area.
King Street, between Yonge and Bay streets, was closed for most of the evening, with police redirecting pedestrians.
The Toronto Transit Commission diverted streetcars on its busy 504 route and subways bypassed the King subway station.
It was the second time the bomb disposal squad was called out on Wednesday.
Earlier in the day, they investigated a suspicious package in the city's east end.
That object turned out to be a souvenir artillery shell which did not contain any explosives.