SOUTHBRIDGE (CBS) — The Southbridge Middle/High School was locked down Wednesday afternoon after students reported seeing a weapon.

The building was put into shelter-in place lockdown and no weapon was found.

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Sources tell WBZ that a student was waving a stapler, and other students thought it was a gun.

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A photo from a student that was sent to WBZ showed armed police officers walking through a hallway.

Police in Southbridge Middle/High School during the lockdown (viewer photo)

Police in Southbridge Middle/High School during the lockdown (viewer photo)

Police said all students and staff were safe and there was no immediate danger.

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The school was cleared shortly before 3 p.m. and students were dismissed.