PORTLAND (AP) — The Maine Fire Marshal’s Office is investigating a fire that caused damage at a Portland fire station.

Fire officials say the blaze broke out around 6 p.m. Sunday, and that firefighters had to return when a couple of hot spots flared up Monday morning.

Firefighters were responding to a separate call when smoke was reported at the North Deering fire station. The fire was centered around the kitchen area.

Fire officials said there was no serious damage and no one was injured. Fire crews housed in the station were relocated to other nearby stations.

A fire engine races to the scene of an emergency.