The cause of a fire that destroyed a warehouse of classic cars is still undetermined.

County Classic Cars in Macuoupin County, Illinois, caught fire Sunday evening. More than 90 firefighters from 13 different departments responded to the five-alarm fire. The fire was brought under control by 10:30 p.m. but firefighters fought the blaze until 3:30 a.m. Monday.  \

The building and cars within are a total loss.

Illinois Fire Marshall is still investigating the cause.