BUDA, Texas (KXAN) — After Johnson High School in Buda released students early after a “small fire” in the athletics wing of the building Thursday morning, Hays CISD said it’s also canceling Friday classes for the campus.

Hays CISD said the fire took place around 10 a.m. The school was evacuated and sprinkler systems activated with smoke still in the building. The district said the fire “appears to have started in a dryer in the athletics wing laundry room.” An investigation into its cause is underway.

The fire stayed in the laundry room, but heavy smoke traveled throughout much of the building, according to an update from Hays CISD.

Crews will work the rest of Thursday and Friday to vent out the smoke and smell, clean up water from the sprinklers and reset/retest the fire alarm system.

Hays CISD said the campus had to use the public address system to evacuate, since the automatic audible warning alarm on the fire suppression system didn’t work as intended.

“Earlier in the week, the campus experienced several false alarms with the automatic audible warning system. The alarm company made repairs, but there was clearly an issue again with that part of the system on Thursday morning,” Tim Savoy, the chief communication officer for Hays CISD, said in a press release. “The district, in concert with campus leadership, believes it’s best to keep the building closed Friday so that we can do what we need to do to make sure everything is cleaned up and working properly before students and teachers return to the building.”

School should pick back up Monday, and students shouldn’t have to make up the missed days.

Staff and students who left personal items behind while evacuating the building can pick them up Friday between 8:30 and 10:30 a.m. If they can wait until Monday, though, the district said it prefers that. The building will be secured through the weekend.