Authorities evacuated Gray-New Gloucester High School at lunchtime today after school officials discovered a bomb threat written on a boys’ bathroom wall.

The school was evacuated at noon and was searched by Cumberland County sheriff’s deputies, staff members and the Maine State Police bomb detection team. There was no device found and the school was deemed clear at 1:50 p.m., about the time students were to be dismissed.

The sheriff’s office continues to investigate the incident, which represents the crime of terrorizing, a class B felony.