(Lincoln, IL) -- Authorities are investigating a suspicious fire in Lincoln. McEntire Roofing’s headquarters in the 19-hundred block of North Kickapoo Street went up in flames early Saturday morning. Fire officials say the evidence is pointing to arson since they’ve already found several sources of ignition. Two men wearing hoodies were spotted walking near the warehouse around the time flames began kicking up. The business suffered 300-grand in damage. Anyone with a tip about the identity of the suspects is asked to call Crime Stoppers.