WASHINGTON, March 22 (Xinhua) -- Three active-duty Marines are dead in a shooting that has been linked to a "love triangle" involving the three, U.S. media reported Friday.
The authorities at the Quantico Marine Corps Base in the U.S. state of Virginia responded to the shooting incident, which took place on-base at about 11 p.m. Thursday, American Forces Press Service reported.
Officials said the shooter died of an apparently self-inflicted gunshot wound. The incident is still under investigation.
NBC News reported the three Marines knew each other and may have been involved in a "love triangle." Two of the Marines, including the shooter, were men, while the third was female. The shooter reportedly killed the other two and then himself.
In a statement released Friday morning, Pentagon Press Secretary George Little said Defense Secretary Chuck Hagel was saddened to learn of Thursday's shooting as well as another tragedy earlier this week.
Seven Marines were killed in an explosion during a drill at a Nevada base Tuesday.