The U.S. Naval Academy in Annapolis was under lockdown on Sept. 11 after authorities received reports of threats, the academy said.

The Naval Support Activity Annapolis and local law enforcement were currently investigating the threats, according to the academy.

"The base is on lockdown out of an abundance of caution," the academy said in a statement on social media . "This is a developing situation, and we will provide updates as they become available."

The U.S. Naval Academy is an undergraduate school for naval services and is located in Annapolis, Maryland, about 30 miles southeast of Baltimore.

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