Half the city was in the dark.

An outage that left half the city of East Grand Forks without power for a couple of hours when a substation exploded has been fixed. 

The outage began at about 9 p.m. Thursday and ended around 11:30 p.m., but not before disrupting a high school hockey game when the lights went out at the Civic Center.

The city of East Grand Forks, on the border with North Dakota, has about 8,600 residents. 

KFGO-AM reported Friday that residents reported seeing bright flashing lights and fire coming from the substation before the outage.