TORONTO -- A truck rollover is causing massive traffic delays on a Toronto highway at the height of the morning rush.
Police say the transport truck crashed just before 6 a.m. near the Burnhamthorpe Road exit of the Highway 427 southbound express lanes.
That forces motorists onto the collectors lanes and at one point, traffic was backed up to Highway 401.
Police say it could take hours to clear the highway.
They say no one was hurt and it's still unclear what caused the collision.
