A storage shed at the Mendakota Country Club in Mendota Heights is a total loss and the neighboring clubhouse was damaged as a result of an early Friday fire.

Flames were shooting through the roof of the storage shed when crews arrived about 4:30 a.m. at the private golf club at 2075 Mendakota Drive, said Scott Goldenstein, assistant fire chief with the Mendota Heights Fire Department.

It was not clear what sparked the blaze, which then spread to the nearby clubhouse. Smoke billowing into the air was visible from the area near Interstate 35E and Hwy. 110.

Goldenstein said the storage building was "a total loss," but damage to the clubhouse was mostly limited to smoke and water. He did not have a damage estimate.

Authorities at midmorning were on the scene trying to determine how the fire started.

Crews from four agencies — Mendota Heights, Eagan, Inver Grove Heights and the South Metro Fire Department — worked to put out the fire. No one was hurt, Goldenstein said.