Thousands were in the dark Sunday morning as Hamilton and much of southern and eastern Ontario continued to be in the grip of a massive ice storm.
A Freezing Rain Warning remained in effect as of noon Sunday but was expected to soon end.
Trees and power lines brought down by a coating of ice left some 350,000 customers without electricity, including around 25,000 in the Great Hamilton Area.
Horizon Utilities had crews working to restore service to more than 13,000 customers in Hamilton, Stoney Creek, Dundas, Ancaster and Flamborough.
The utility was hoping to have the power back by 11:30 Sunday morning.
Another 8,000 Horizon customers in St. Catharines were also affected.
Hydro One says more than 12,000 of its customers in the Hamilton area lost their power.
They hoped to have service restored by 10 p.m.
And Burlington Hydro was also dealing with numerous scattered outages.
Environment Canada said that freezing rain would change to rain or drizzle and end by Sunday afternoon.