An SUV doing a sideshow early Saturday in San Francisco’s South of Market area struck a 22-year-old woman before fleeing the scene, authorities said.

The collision happened at 2 a.m. near 13th Street and South Van Ness Avenue, according to San Francisco police. Police have not made an arrest or released suspect information, but they are investigating the incident as a hit-and-run.

The victim was standing in the roadway when she was struck by one of the vehicles doing a sideshow, police said. She was taken to the hospital and her condition was unknown.

Police could not immediately be reached for comment Monday.

Three weeks ago, a man was killed in what residents said was a sideshow in the Bayview.

Anna Bauman is a San Francisco Chronicle staff writer. Email: anna.bauman@sfchronicle.com Twitter: @abauman2