A building at a former Baton Rouge school caught fire overnight, and officials believe the cause of the fire may be suspicious.

Just before 11 p.m. Saturday, Baton Rouge firefighters were called to a fire at the former Desire Street Academy at 3852 East Brookstown Drive, the Baton Rouge Fire Department said in a news release. Firefighters found the fire coming from a building at the rear of the property. The building looked to be an old house that was converted into a storage building for the now closed school, BRFD said.

It took firefighters “several minutes” to get water to the fire because the privately owned fire plugs on the property were not working, BRFD said. The building was completely engulfed before firefighters could get water to the fire.

The fire was deemed under control three hours later, at 2:11 a.m. Seven total units were dispatched to the fire.

The building is considered a total loss, BRFD said. There was no one in the building at the time of the fire, and no injuries were reported.

Because the building had no power, investigators believe the cause of the fire could be suspicious, BRFD said. Anyone with information is asked to call 225-354-1419.