Students were evacuated Friday when a heating and air conditioning unit caught fire behind Langston Chapel Elementary School. Statesboro firefighters responded around 11:45 a.m. to find the blaze at a unit outside the fifth-grade hall, said Hayley Greene, the Bulloch County school system's public relations and marketing specialist. Because the school shares a cafeteria with Langston Chapel Middle School, students, staff and faculty from both schools were evacuated as a safety precaution, she said.