Washington DC's police union on Sunday criticized officials who 'won't let us do our jobs', as a $10,000 reward was offered for information about Saturday's shooting outside the Washington Nationals baseball game.
Fans ran for cover and three people were shot just outside the stadium's third base gate, when gunmen in two cars exchanged fire.
On Sunday police released photos of one of the cars involved, in the hope of tracking down the suspects.
The driver of the car sped off after the 9:30pm shooting.
Police in Washington DC are searching for a gray Toyota Corolla with a missing hubcap, which was seen at the scene of Saturday night's shooting outside the Washington Nationals stadium
They said the vehicle had a temporary Virginia tag on it. Police are searching for the owner
'The suspect vehicle in this case is described as a gray Toyota Corolla with a missing hubcap on the rear driver's side wheel and dark tinted windows,' the Metropolitan Police Department said in a press release Sunday.
'The vehicle is believed to be displaying a Virginia temporary tag.
'The vehicle was captured by a nearby surveillance camera and can be seen in the photos.'
The police union, however, heaped blame on the 'elected officials' who they said allowed DC to become lawless.
'Welcome to Washington, D.C. Where violent crime permeates everything,' they tweeted on Sunday morning.
'It is a tragedy that elected officials won’t let us do our jobs.'
The Nationals were in the sixth inning of a game against the San Diego Padres, and players were walking off the field in between innings when several gunshots rang out in rapid succession, sparking fears of a mass shooting in the stadium.
Fans poured out onto the field to find cover and flipped tables in a bar to hide behind while players frantically searched for family members in the stands.
'It was just a chaotic scene,' umpire crew chief Mark Carlson told The Associated Press.
'We heard what sounded like rapid gunfire. We didn't know where it was coming from.'
In the shooting that took place just outside the stadium, one of the victims - a woman - was an innocent bystander.
She was caught in the crossfire when the gunmen opened fire at each other, Ashan Benedict, the Metropolitan Police Department's executive assistant police chief, said during a Saturday night press conference.
The victim's injuries are not considered life threatening, Benedict said.
The other two people who were shot were in the same car and walked into area hospitals, where they're being questioned by police. DC police are also looking for the second car.
DC Police originally said there were two victims taken to the hospital and two walked into area hospitals for gunshot wounds, but they updated the number to three three victims during the press conference.
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Fans pour out onto the field after hearing gunshots outside the stadium
Fans jump into a camera well after hearing gunfire from outside the stadium, during a baseball game between the San Diego Padres and the Washington Nationals at Nationals Park in Washington
