A structure fire shortly before 9 a.m. Monday in Billings caused an estimated $30,000, according to Deputy Fire Marshal Trever Schilling.

Firefighters were called to the fire at 118 S. 29th St. at 8:48 a.m. The structure was not occupied and there no injuries.

The blaze damaged the structure and the contents, Schilling said in a news release. The property was not insured.

The cause of the fire remains under investigation.