According to ABC7's sister station in San Francisco, it appears the sideshow led to chaos as people also got out of their cars and were seen lighting fireworks or running around filming the incident.
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Video shows multiple cars on fire when police arrived.
Authorities eventually put out those flames as officers cleared the traffic.
No word if any arrests were made in this incident.
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According to the Oakland Police Department, officers were investigating reports of other sideshows throughout the city that night.
The officers reportedly saw dozens of vehicles and spectators engaged in illegal sideshow activity, according to police.