ASH RIVER, Minn. (AP) - Authorities say the restaurant at a resort in far northern Minnesota has been destroyed by fire.

The St. Louis County Sheriff's Department says it responded to a fire at the Ash Ka Nam Lodge and Resort in Ash River about 6:30 a.m. Tuesday.

Officials say it appears the fire started inside the restaurant bar and grill at the resort, which was unoccupied at the time.

The Minnesota state fire marshal is investigating.