The city of Moose Lake lost power to homes and businesses on Monday during subzero temperatures.

According to information released by city officials, there was an explosion in a regulator at the north substation at 7:20 p.m. The Moose Lake police and fire departments responded.

“The fire was almost out when we got there,” said Moose Lake fire chief Jim Michalski. There were no injuries. He said a regulator across the street from the plant exploded.

A warming shelter was opened at the Moose Lake Community School for those who had lost their source of heat. School buses were available fo...