Stone Mountain High School was locked down after a weapon was found on campus; it was secured without incident.

STONE MOUNTAIN, Ga. - Stone Mountain High School was placed on lockdown on Thursday after a weapon was found on campus. There were no threats, and no one was injured.

In an e-mail to parents, the school’s principal says the incident shows the importance of the district’s See Something, Say Something campaign.

ATLANTA — Officials with DeKalb County Schools have confirmed that a weapon was found on campus at Stone Mountain High School on Thursday. At this time, there is no word on where the weapon was found. Officials also specified that no one was threatened or harmed, and no additional illegal items have been found.

Stone Mountain High School was put on lockdown Thursday after a weapon was found on campus, according to school district officials.A spokesperson for DeKalb County Schools said school police initiated the lockdown out of an abundance of caution after the weapon was found Thursday morning.