They’re still trying to figure out the cause of a fire that destroyed a laundry and utility building at a mobile home park in South Kelso. This fire was reported at about 4:30 Saturday morning, at 507 Colorado Street. Three engines from Cowlitz 2 responded, along with a Longview engine and a medic unit. The building ended up being a total loss. One firefighter sustained a shoulder injury during the effort, and was taken to St. John Medical Center for treatment. It took about a half-hour to get the fire contained. There’s no dollar estimate on the damage done as of yet.