ELKHART, Ind. — Fire crews responded to large building fire on the 2600 block of Old U.S. 20 in Elkhart late Tuesday night.

According to officials, a passerby called as the building, occupied by Tri-State Incorporated, was fully engulfed in flames.

The building had a warehouse space and offices. There were trailers and a diesel truck in the building, according to the owner.

Firefighters have not determined the cause of the fire.