Ontario's provincial utility says power has been restored to more than half a million customers four days after an ice storm first moved into the region, but that some hard-hit areas may remain without it until the end of the week.

Over 330,000 residents of Ontario remain without power after heavy freezing rain. Hydro One reports damage to power lines and fallen trees. What do you need to know? Where were the biggest problems? Power outages mainly affected central and eastern Ontario and the city of Orillia,

Over 218,000 Ontario homes are in the dark as widespread blackouts impact the province amid a brutal ice storm this weekend, according to Hydro