Three people died Saturday in a shooting at a Columbia, Maryland mall, according to the Howard County police.
Police chief Bill McMahon told reporters at a briefing that one of the three deceased was believed to be the shooter, and has still not been identified.
Police said the shooter was dead when they came upon him, and that he was still in possession of a large amount of ammunition. McMahon said the shooter used a shotgun.
The department said in a tweet that a call came into 911 around 11:15 a.m. that shots were fired at the Columbia mall. Police found three dead, including "one found near a gun and ammunition."
Police believe the mall is secure at this time but are asking people inside to stay in place until officers can secure the area.
A motive is unknown at this time.
This story has been updated at 7:44 p.m.