BEND, OR -- Bend Fire & Rescue credits a sprinkler system for slowing the spread of a fire in a commercial building Monday night.

An alarm company called in the fire just after 9:30 p.m. As firefighters were responding to NE 18th, the business owner reported seeing smoke on security cameras.

When crews arrived, they found the blaze controlled by one sprinkler head that activated inside an upstairs bathroom. Flames were contained to that area and the two businesses in the building were able to reopen Tuesday afternoon.

Damage is estimated at about $10,000. The cause of the fire is under investigation.