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Local law enforcement officers were responding to the campus in Annapolis, Md., a spokesman said.

By Rylee KirkJohn Ismay and JoAnna Daemmrich

The United States Naval Academy in Annapolis, Md., was placed under lockdown on Thursday after receiving threats, a spokesman said.

Local law enforcement officers were responding to the campus, said Lt. Naweed Lemar, a spokesman for the U.S. Navy.