Three Marines, including the suspected gunman, are dead after a shooting at Marine Corps Base Quantico in Virginia.
The suspected shooter, a male Marine, was killed from an apparent self-inflicted gunshot wound when authorities found his body inside a barracks building near the Officer Candidate School early this morning, Lt. Agustin Solivan told ABC News. The suspect has been identified as a staff member at the Officer Cadet School, according to Solivan.
The gunfire started at 11 p.m. Thursday when the suspected gunman killed a male Marine, who was also a staff member at the Officer Cadet School, Solivan said. The suspect barricaded himself inside the barracks, setting off a standoff with authorities, which prompted a lockdown of the base.
When authorities entered the barracks, they found a female Marine dead in the barracks, Solivan said. Solivan could not say what prompted authorities to enter the barracks or specify her classification.
The lockdown of the base was lifted shortly after 3 a.m.
"Marine Corps Base Quantico is Code Green at this time. All normal activities are cleared to resume," Quantico said on Twitter.
The authorities are planning a press conference later this morning.
ABC News' Chad Murray contributed to this report.