A military base in New Jersey was placed under lockdown on Tuesday after reports of gunshots during a training exercise, according to officials. Emergency responders were dispatched to Joint Base McGuire-Dix-Lakehurst around 11 a.m. following calls about an active shooter. The lockdown was lifted just before noon, with a Facebook post from base authorities stating, “ALL CLEAR. ALL CLEAR. ALL CLEAR.”

A high-ranking law enforcement source told NBC News that the incident occurred during a training session, with witnesses hearing gunshots and contacting emergency services. Personnel were instructed to seek shelter immediately. Law enforcement arrived and confirmed there was no active shooter threat, allowing the base to resume normal operations by 11:57 a.m.

New Jersey Gov. Phil Murphy urged those on the base to follow directives from commanders and emergency officials. Col. Michael Stefanovic, commander of Joint Base McGuire-Dix-Lakehurst, emphasized the priority of safety, stating in a statement that collaboration with local authorities ensured the situation was resolved swiftly. No further details about the incident were provided by base officials. The facility, located 18 miles southeast of Trenton, houses units from all six U.S. military branches.