WASHINGTON TWP.  — Washington Township High School students and staff member were evacuated Tuesday morning because of a bomb threat.

A message posted on the school's website and signed by Superintendent Bob Goldschmidt said police and emergency personnel are at the school and investigating.

"The evacuation of WT High School was due to a threat that, by our district procedures, was deemed worth enough to investigate for the safety and security of all students and staff," wrote Goldschmidt.

Police said an emailed bomb threat was received by a school adminisrator Tuesday morning. Once the school was evacuated, an investigation found no traces of a bomb in the school and students and staff returned to the school.