A major collision on the Westbound 407 at Mississauga Road has completely closed that portion of the Express Toll Highway.
There are three people that have been killed with the third victim succumbing to their injuries after being airlifted to hospital in critical condition.
The accident happened around 3 p.m. and at this point it’s not known how many vehicles were involved.
Peel Regional Police were the first to attend the scene and the O.P.P. is also there to perform the investigation.
— Peel Regional Police (@PeelPoliceMedia) July 24, 2016