Students from Orange Grove Middle School, 1911 E. Orange Grove Road, were evacuated for about 20 minutes around noon when the administration building cooling system began emitting a light amount of smoke.

A belt in the air conditioner got stuck and was slightly burned, however, it did not cause a fire, said Capt. Grant Cesarek, spokesman for Rural/Metro Fire Department.

No one was injured and students were never in any danger, he said.