A middle school student is in police custody after bringing a gun to South Orangetown Middle School in Rockland County Tuesday morning.

Students arrived back to the Blauvelt school following the three-day Memorial Day weekend before they were placed under lockdown at 9 a.m.

All students and teachers were directed to remain in their classrooms.

Area police arrived on the scene shortly after the discovery of the weapon and conducted sweeps of the school and surrounding streets.

Superintendent Kenneth Mitchell released an e-mailed statement to parents at 9:36 a.m. to inform parents of the lockdown.

"At 9 a.m. the middle school went into an emergency lock down when it was determined that a student was in possession of what appears to be a gun," Mitchell wrote. "The student has been taken into custody and the building is being secured by the Orangteown police department."

No one was injured during the incident.

This is not the first gun-related incident for South Orangetown Middle School or Mitchell.

In June 2009, Mitchell was held hostage in his office by an angry parent, who had burst in with a gun. The former NYPD officer Peter Cocker was apparently upset over a letter Mitchell sent out regarding the swine flu virus.

Cocker was sentenced to five years in prison and five years of post-release supervision.