HAMDEN, Conn. (WTNH) – Hamden High School was evacuated Tuesday morning due to a reported bomb threat.

A letter sent to parents and families said that around 8 a.m., 911 dispatch received a bomb threat directed toward Hamden High School.

All students and staff were evacuated to a safe location. Hamden police and fire personnel are scanning the building to make sure it is safe for students and staff to return.

As of 10 a.m., all students and staff have returned to the building safely.

According to Hamden police, the school and surrounding areas were searched, but nothing was found to substantiate the threat.

The incident is under investigation.

Stay tuned to News 8 for updates on this story.