Two eastbound express lanes of Highway 401 areclosed west of Dixie Road following a collision.
All traffic is currently being rerouted to the collector lanes due to a single-vehicle rollover, say police.
In a post on X, plice said that the driver of the vehicle sustained serious, but non-life-threatening injuries.
The OPP is at the scene.
The highway is expected to fully reopen at 6 p.m.