Mars Area High School was evacuated Friday morning, Nov. 13, due to an odor of gas in multiple areas of the building, according to Butler County Emergency Services dispatch recordings.

The gas company was requested to the school for the potential leak, which was reported before 9 a.m.

“Responding emergency personnel, working in cooperation with district officials, have determined the cause of the issue to be an outside secondary source, unrelated to the school’s gas system, and have deemed the building to be safe,” according to the message administration sent to parents Friday morning.

“All students and staff members will be returning to Mars Area High School, and the education process will resume as normal,” it said.