Three people have been injured in a multi-vehicle crash on the southbound lanes of Highway 427 near the 407.
It happened around 10 p.m. Friday night.
Ontario Provincial Police say two transport trucks and one SUV collided.
Two people have life-threatening injuries, and they were the passengers in the SUV.
One other person has minor injuries.
The cause of the crash hasn't been determined.
The southbound lanes of Highway 427 did not reopen until almost 10 a.m. Saturday.