SAN FRANCISCO (CBS SF) — A sideshow following a large gathering in San Francisco Mission District honoring the life of the late Tejano music icon Selena Saturday ended with injuries to a least four spectators.

San Francisco police said officers responded at about 9:30 p.m. to a vehicle injury collision at a sideshow on Mission Street between 23rd and 26th streets.

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Social media video showed cars doing doughnuts in the intersection with a large crowd gathered to watch. Other video shows a large police response along with ambulances.

“Officers arrived on scene and found traffic congested due to the inability for traffic to move caused by exhibitions of stunt driving in the area,” San Francisco police said in an e-mail.

Police said Sunday morning that one vehicle at the sideshow struck four bystanders and drove off.

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The victims were all adult males and were taken to a hospital with non-life-threatening injuries, according to the police.

Eventually, police were able to clear the crowd and traffic. There was no immediate word of any citations issued or arrests made.

Anyone with information is asked to contact the San Francisco police department at (415) 575-4444 or text a tip to TIP411 and start the message with SFPD.

Hours earlier, hundreds of revelers crowded the sidewalks of the Mission District to celebrate life of famed Tejano music icon Selena Quintanilla-Pérez.

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Low-riders cruised down Mission Street, fireworks were set off and Selena’s music played in the background.