HARRISON TWP. — A single live .22-caliber bullet was found outside Clearview Regional High School Tuesday morning and the school was immediately placed on lockdown.

A maintenance worker found the round just outside the media wing entrance of the school, police said.

A statement was posted on the school’s website announcing the lockdown “for precautionary measures.” Alerts also went out through the school’s telephone notification system, said police.

There was never any risk for students or staff, police said.

Officers and K-9 teams from around the region are searching the school, just in case, said police. Assistance was received from the New Jersey State Police, Salem County Sheriff's Department, Camden County Sheriff's Department, the Gloucester County Sheriff's Department, Rowan University, Glassboro, Pitman, Mantua, West Deptford, Logan and Woolwich police.

The school was scheduled for a 12:15 p.m. dismissal.

No threats were made, police said. They expected the lockdown to be lifted by 1 p.m..

No arrests have been made and the incident is under investigation, police said.