Hamilton city hall was evacuated Friday after reports of a bomb threat.
Police were contacted around 11 a.m. after a threat was received via phone call.
The building, located at 71 Main St. West, was cleared while officers search the premises.
After several hours, police say they found no threat inside and cleared the building.
The investigation caused major traffic delays in the area as police taped off an entire downtown block surrounding city hall.
Police are still looking into where the threat came from.
Hamilton Police are investigating a threat at @cityofhamilton City Hall.
The building has been cleared while police search the premise.
Main Street has been closed between Bay and MacNab. Please avoid the area as traffic will be affected. #HamOnt
— Hamilton Police (@HamiltonPolice) August 6, 2021
2021-08-06 11:57:08 ROAD RESTRICTION: #Hamilton AVOID the area of City Hall. Traffic CLOSED Main St east bound at Bay St S., Bay St. north bound at Hunter St., Hunter St. west bound at Macnab St S, and Macnab St S between Main and Hunter #HamOnt
— HPS_Traffic (@hps_traffic) August 6, 2021