A police officer walks by yellow evidence markers at a playground in the Brownsville neighborhood in the Brooklyn borough of New York, Sunday, July 28, 2019. Police said, one man was killed and at least 11 others were injured in a shooting late Saturday night at the park. (AP Photo/Mark Lennihan)

A police officer walks by yellow evidence markers at a playground in the Brownsville neighborhood in the Brooklyn borough of New York, Sunday, July 28, 2019. Police said, one man was killed and at least 11 others were injured in a shooting late Saturday night at the park. (AP Photo/Mark Lennihan)

NEW YORK (AP) — A popular community festival was coming to a close when gunfire erupted in a Brooklyn neighborhood, leaving one man dead, another person in critical condition and 10 others wounded, authorities said Sunday as they searched for two shooters they believe were involved.

New York Police Commissioner James O’Neill said the shooting late Saturday in the borough’s Brownsville section “was a tragic end to a wonderful weekend” that involved thousands of people gathering to take part in the annual Old Timers Event, which featured musical performances from former residents and current local talent.

The crowd at the celebration was dispersing when gunshots rang out from a playground area in the park where it was taking place, officials said.

Twelve people were hit — seven men and five women between the ages of 21 and 55. A 38-year-old man died from a bullet wound to the head. His name was not immediately released.

Six of the wounded had been released from the hospital by midday Sunday, O’Neill said.

No arrests have been made, and authorities asked anyone with information or cellphone video to come forward. One gun was recovered. O’Neill said gang activity was among the possible motives.

“There were a lot of people just chilling and having a good time,” Kaseem Collins, 19, told the Daily News. Then, when shots rang out, “we all started running,” he said. “I ran as fast as I could away from everyone. I thought I was going to get shot.”

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“I heard shots, and I saw a stampede running toward me,” Diamond Perez, 38, told the newspaper.

The Old Timers Event had been held since 1963, O’Neill said.

A 2010 newsletter from the parks department described it as a celebration of former members of the Brownsville Recreation Center “who went on to success and fame in sports and other endeavors.” It said the event has grown over the years to include concerts and other things.

Speaking at a news conference on Sunday, New York City Mayor Bill de Blasio said the two-day block party was an “example of everything good about the Brownsville community” and decried the shooting as a “tragedy” that does not define the neighborhood.

Videos posted on social media showed police clearing large groups of people out of the area around the recreation center. Photos from local news outlets showed several people taken away on stretchers, including some with what appeared to be minor wounds.

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“It was chaos,” Gary Miller, a 60-year-old vendor at the event, told the New York Post. Witnesses heard 9 to 11 shots, “and everyone was running and scattering for cover.”

Brownsville is an east Brooklyn neighborhood that’s continued to struggle with gun violence, even as New York streets become safer than they have been in decades.

State Sen. Roxanne J. Persaud added the hashtags ”#StopTheViolence” and ”#PutDownTheGuns” to her tweets expressing frustration with the shooting, which she called “unacceptable” and “cowardly.”

“Our community mourns again. We should be able to have fun in open spaces without fear of violence,” tweeted Persaud, whose district includes Brownsville. “Respect your community. We are better than the violence.”

Activists and elected officials spoke out on the need for more resources to go toward community groups and anti-violence programs, as well as efforts to crack down on illegal guns.

“We don’t need bumper-sticker slogans, we need real partnership on the ground,” Brooklyn Borough President Eric Adams said.