Toronto Hydro say they are have restored power to about 1,200 customers in Etobicoke as an extreme cold warning remains in effect for the city.
Customers near Islington Avenue and Norseman Street were without power from 6:30 p.m. to around 11:30 p.m. on Sunday.
Temperatures were at around -15 C at that time, according to Environment Canada.
Toronto Hydro says downed wires caused the New Year's Eve outage.
The utility initially estimated that power would be restored by 9:30 p.m., but later extended that to 11:30 p.m. It said its crews needed extra time for repairs due to the frigid weather conditions.
Etobicoke update: Revised boundaries: Berry Rd/Chartwell/Norseman/Beaucourt Rd. Crews have isolated the cause and will start bringing customers' power back on. Our crews are working as quickly as possible to restore power to the neighborhood. Thank you.— @TorontoHydro