The cause of a fire Thursday evening at Advanced Trust Fabricators, 2713 Twin City Dr. Mandan, remains under investigation.
Mitch Bitz, battalion chief with the Mandan Fire Department, said his department received a call on a structure fire about 7 p.m.
Bitz said responding crews found flames coming from the building. He said firefighters contained the blaze in about two hours.
No one was in the building at the time, and there were no injuries, Bitz said. An estimate of damage to the business was not available.