‘Expect heavy traffic delays’: Vehicle fire causes major delays on Hwy. 401 in Ajax

Crews battling fire on Highway 401 in ajax on Thursday July, 10, 2025 (CP24 Chopper photo).

Ontario Provincial Police (OPP) are warning drivers to take extra precaution Thursday afternoon after a vehicle fire on Highway 401 eastbound, just east of Salem Road in Ajax, led to the temporary closure of multiple lanes.

In an update to social media shortly before 3 p.m., officials confirmed all eastbound lanes have since reopened, but noted a “heavy backlog” remains following the cleanup.

Police also said the westbound lanes were previously affected due to the incident.

It’s unclear how long traffic delays could persist and there is no word on any further closures in the area.