This weekend saw the first major snowfall of the season for Toronto and it wreaked havoc on GTA roads and highways.
OPP say they responded to hundreds of calls in the GTA since Sunday morning -- at one point getting a call a minute about people in ditches or hitting the guard rail.
One of those calls were about a crash Sunday morning on the eastbound 401. That accident left two people in hospital in critical condition.
Since the snow first began to fall Saturday, the OPP's communication centre in Orillia answered over 4000 calls.
One of the more serious accidents Saturday happened on the westbound QEW in Mississauga at about 11:30 a.m., as snowfall was picking up in the area.
MTO closed the Fort Erie bound lanes of the highway from Erin Mills to Winston Churchill Blvd for several hours.
OPP say around 30 vehicles were involved. No injuries were reported and no one had to be taken to hospital.
Saturday evening, two people were killed in a crash in Barrie.
There was also a multi-vehicle crash on the DVP near Don Mills early Sunday morning.
A busy weekend for city crews as well. They've completed plowing and salting of major roads in the city and are hitting the residential streets, hoping to have them cleared by Sunday night.