An early-morning multi-vehicle crash closed lanes on the westbound 401 in Pickering Thursday.
The collision snarled traffic for hours through the Pickering area all the way to Oshawa after a tractor trailer flipped on its side after going through a concrete barrier.
A number of other vehicles were damaged during the incident which happened just before 6:00a.m. in the 401 westbound express lanes near Whites Road. The tractor trailer actually went into the collector lanes after slamming through the barrier.
A handful of drivers suffered minor injuries.