The Marine Corps base in Quantico, Va., was on lockdown early Friday after an isolated shooting left one dead at the Officer Candidate School, the base said. The gunman was surrounded after barricading himself in barracks.
Base residents were ordered to stay inside and lock their doors. The threat level was boosted to FPCON Delta, the base said on its website and Facebook page. That threat level can describe an active shooter or a terrorist attack.
The suspect was believed to be a staff member at the officer candidate school at the base, the Associated Press reported. Prince William County and military police had responded.
First Lt. Agustin Solivan told local TV station WUSA9 that the shooting happened about 11 p.m. The victim's condition was not known.