Several homes in the Airlie, Lasalle, area of Montreal, Canada, were evacuated on Sunday night.
CTV’s Cindy Sherwin reported that a small robot was dispatched to the driveway of a home that was searched.
Police and SWAT team officers had their shields up at one point.
Five blocks were evacuated.
The incident was sparked after officials detained a person at the Montreal airport. Officers were led to the Airlie home.