Ontario Provincial Police (OPP) shut down the westbound lanes of Highway 401 on Sunday afternoon following a vehicle collision.
According to a tweet from the West Region OPP, the highway was closed between exit 101 Kent Bridge Road/County Road 15 all the way to exit 90 Highway 40/Communication Road (County Road 11).
The crash took place sometime before 4 p.m.
In a follow-up tweet, the OPP said the highway had reopened shortly before 6 p.m. on Sunday.
No other information about the incident was immediately available.