9:32 PM PT -- Police now say there were 3 people shot outside the stadium ... not 4 as they initially said.
A law enforcement official told reporters their initial investigation showed 2 cars were involved in a shootout ... leaving 3 people injured. One of the injured was a woman attending the baseball game ... who was struck by an errant bullet.
Police say 2 other injured people later walked into a hospital ... and are currently being questioned by investigators.
Cops are still attempting to locate the 2nd vehicle involved in the shooting.
Terrifying moment outside Nationals Park tonight during the Washington-San Diego Padres game ... after multiple people were shot, according to D.C. police.
The game was suspended in the 6th inning ... after a shooting near the 3rd base side entrance to the ballpark.
Washington D.C. police Tweeted 2 victims were located outside the stadium ... and 2 others walked into the hospital with gunshot wounds. The cops also say there doesn't appear to be any ongoing threat.
It's unclear if the shooter is in custody.
Videos circulating on social media show a chilling scene ... with panicked fans fleeing the area.
BREAKING from @Nationals: A shooting has been reported outside of the Third Base Gate at Nationals Park.