The United States Naval Academy in Maryland was put on lockdown Thursday and a building was cleared in response to reports of threats made to the military school, and one person was injured, officials said.

The person injured was airlifted to a hospital and was in stable condition, Lt. Naweed Lemar, the spokesperson for the base that hosts the academy, said in a statement. Naval Support Activity Annapolis security and local law enforcement had responded to the reports of suspicious activity, Lemar said.