He's the third person shot since Wednesday in Pasco.
Pasco police still are investigating and determining which of the shootings and other weekend incidents of violence may be related, possibly as part of ongoing gang retaliation.
Police were called to the flea market at East Lewis Place near Highway 12 and the Pasco-Kahlotus highway about 2:45 p.m. Sunday. Hundreds of people were enjoying the nice weather, shopping the market's stalls that have a mix of Mexican and U.S. goods and food.
Police had a report that someone had been shot, but when they arrived they found a young teenager who had been assaulted in a fistfight, said Pasco Sgt. Mike Monroe. No one said they knew anything about a gunfire, he said.
But as another patrol car was arriving, a car leaving the flea market stopped and a 17-year-old with a gunshot wound to the chest got out of the car, Monroe said.
He was taken to Kennewick General Hospital. Although the injury did not appear to be life-threatening, he will need surgery, Monroe said.
The young teen who had been hit in the head during the fistfight was taken to Lourdes Medical Center in Pasco.
The two people in the car with the teen who was shot are being interviewed by police, and the shooting appears gang related at this point in the investigation, Monroe said.
Police still are piecing together how the fistfight was related to the shooting, but know they happened in the same area and at the same time, he said.
About an hour after the flea market shooting, police got several calls from people in the neighborhood east of East Oregon Avenue.
They reported shots fired from a car as two cars chased each other around the neighborhood that includes Broadway Boulevard, Hugo Avenue and Douglas Avenue.
A parked car was hit and people linked to gangs were seen running on the street, Monroe said. The cars involved in the chase included a maroon Cadillac and a gray or silver Honda.
Saturday night, Pasco police also responded to a gang fight about 11 p.m. at Kim's Conoco at 1909 Court St. No weapons were involved, but a car was seized that appeared to have a weapon inside, Monroe said.
Two adults and one juvenile were arrested for rioting. One of the adults had been contacted Saturday morning when a search warrant was served at a house on South Seventh Avenue in Pasco.
That morning a young man had been found with a gunshot wound after a suspected gang fight about 4:30 a.m. in the area of South Sixth Avenue and B Street.
Pasco police stopped a car leaving the area and found a 22-year-old man who had been shot. The wound was not life threatening.
The search warrant was served at the South Seventh Avenue house because of suspicions that people involved in the fight might be in the house. Because several people were in the house and the link to the suspected gang gun fight, a SWAT team provided support.
Several children were taken outside Saturday morning and then an unknown number of people were detained.
The round of violence suspected to be gang-related started Wednesday when another 22-year-old man was shot at 5:40 p.m. at 411 N. Cedar Ave. in east Pasco. His wound also did not appear to be life-threatening.
Names of those involved in the incidents were not available on the weekend.