Highway 403 partially blocked after rollover at Highway 52 in Ancaster

Highway 403 in Ancaster has been partially blocked after a rollover at the junction near Highway 52 on Friday.

Ontario Provincial Police say a single vehicle collision happened at around 12:30 p.m., involving a passenger vehicle.

They say one person was transported to hospital for injuries with non-life-threatening injuries.

Police say one eastbound lane on Highway 403 is currently blocked.

Investigators have not said what the cause of the crash is yet.

Officers posted on X at just after 1 p.m., advising drivers to avoid the area.

TRAFFIC ADVISORY: Highway 403 is partially blocked due to a vehicle rollover at Highway 52 in the Hamilton area. The extent of injuries is not yet known. Motorists should avoid the area. ^pia#BurlingtonOPP pic.twitter.com/IynLYWG89p

— OPP GTA Traffic (@OPP_GTATraffic) October 2, 2026

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