Police say 1 dead and 9 children among 22 shot near Kansas City's Super Bowl parade

Warning: This story contains graphic images of wounded victims.

Nine children were among 22 people injured by gunfire in a shooting at the end of Wednesday's parade to celebrate Kansas City's Super Bowl win, Children's Mercy Hospital said, as terrified fans ran for cover and yet another high-profile public event was marred by gun violence. One person was killed, identified by her radio station as a DJ.

Kansas City Police Chief Stacey Graves detailed the shooting's toll at a news conference and said three people had been taken into custody. She said she has heard that fans may have been involved in apprehending a suspect but couldn't confirm that.

"I'm angry at what happened today. The people who came to this celebration should expect a safe environment," Graves said. 

Police did not immediately release any details about the people taken into custody or about a possible motive for the shootings. She said firearms had been recovered, but not what kind of weapons were used.

"There's a lot of work ahead. This is just the beginning stages," she said. "All of that is being actively investigated."

It is the latest sports celebration in the U.S. to be marred by gun violence, following a shooting that injured several people last year in downtown Denver after the Nuggets' NBA championship, and gunfire last year at a parking lot near the Texas Rangers' World Series championship parade.

Social media users posted shocking video of police running through a crowded scene as people scrambled for cover and fled. One user's video showed someone apparently performing chest compressions on a shooting victim as another person, seemingly writhing in pain, lay on the ground nearby. People screamed in the background.

Another video showed two onlookers chase down and tackle someone, holding that person down until two police officers arrived.

Local radio station KKFI said in a Facebook post Wednesday evening that DJ Lisa Lopez-Galvan, host of the show Taste of Tejano, was killed in the shooting.

"This senseless act has taken a beautiful person from her family and this KC Community," KKFI said in a statement.

Lopez-Galvan, whose DJ name was "Lisa G," was an extrovert and devoted mother from a prominent Latino family in the area, said Rosa Izurieta and Martha Ramirez, two childhood friends who worked with her at a staffing company. Izurieta said Lopez-Galvan had attended the parade with her husband and her adult son, a die-hard Kansas City sports fan who was also shot.

"She's the type of person who would jump in front of a bullet for anybody — that would be Lisa," Izurieta said.

The shooting outside Union Station happened despite more than 800 police officers who were in the building and around the area, including on top of nearby buildings, said Mayor Quinton Lucas, who attended with his wife and mother and had to run for cover when gunfire broke out.