(Glenwood) – The State Fire Marshal’s Office has determined spontaneous combustion of oily rags in the shop area, was the cause of a blaze early Thursday morning at Best Finish Auto Sales and Service, in Glenwood.

The fire that broke out at around 3-a.m. Thursday, caused damage to the structure, about a half-dozen vehicles inside the shop, as well as shop equipment, such as tire changing machines.

A dollar amount of the damage was not immediately available. Glenwood Fire received mutual aid from the Council Bluffs, Red Oak, Silver City, Oak Township and Malvern Fire Departments in fighting the flames.