A small meth lab probably caused an automatic fire alarm to be triggered at a University of Central Florida dorm, authorities said.

Firefighters responded to the dorm just before midnight Sunday night. Several students had to be evacuated from the first floor of the building. UCF police reported that they discovered the source of the fire alarm when they found a small meth lab in one of the rooms.

The State Fire Marshal and UCF police will continue to investigate.

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