The first of the sideshows reportedly happened just after 11:30 p.m. Saturday at Dolores and 16th streets in San Francisco.
There was another in Oakland on 6th and Market streets about three hours later.
VIDEO: Videos show multiple sideshows overnight in East Bay
Videos show multiple sideshows overnight in East Bay
In that incident, a police helicopter circled overhead as spectators lit fire rings and set off fireworks and drivers did donuts in the intersection.
Oakland police told ABC7 News on Sunday say they seized and towed several vehicles that were involved.
This comes after another sideshow in the East Bay last week.
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