SEATTLE (AP) — There were at least three suspects involved in a shootout at a crowded food festival near Seattle’s Space Needle over the weekend, police said Monday. One of them was among those killed in the violence.

In a document filed in juvenile court in Seattle, where a 15-year-old arrested in the case waived his initial appearance Monday, police said they believe there were at least three shooters, rather than two: the 15-year-old, an acquaintance who died at the scene and “at least one other unknown suspect.”

Nicole Powell, the Seattle Police Department’s assistant chief of investigations, told a news conference Monday afternoon that investigators believe the shooting may have been gang-related, with two groups firing at each other. The deceased shooter was 19.

A judge ordered the 15-year-old held in juvenile detention for investigation of firearms violations and first-degree assault. The King County prosecutor’s office said it expected to receive the case from Seattle police on Wednesday for a charging decision.

The gunfire erupted around 6 p.m. Sunday in the waning hours of the Bite of Seattle, leaving three people dead and at least four others, including a toddler, injured. The annual three-day festival draws hundreds of food and retail vendors and performers to Seattle Center, a sprawling park in the shadow of the Space Needle. Many attendees rushed into campus buildings or ran from the park at the sound of the shots.

Officials provided confusing statements about the shooting

News that there were at least three suspects followed a series of confusing statements from city officials concerning the shooting.

On Sunday, the police department waited five hours to share with the public that one shooter had been arrested and that they believed another to be on the loose. Earlier, Mayor Katie Wilson had announced two people were in custody, a statement she retracted.

At a news conference before the court hearing Monday, Police Chief Shon Barnes said investigators weren’t sure if the second shooter was among the dead. Neither he nor the mayor made any reference to additional shooters. Barnes had been out of town Sunday, attending a conference of Black law enforcement executives in Dallas.

The officials defended their handling of the case, saying they were trying to ensure they provided accurate information about chaotic events.

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