Two people were arrested after a crowd of as many as 200 people blocked traffic and some threw objects at Stockton officers Sunday, according to police.

Throughout the afternoon, the Stockton Police Department reports people were gathered on Martin Luther King Jr. Boulevard, near South Hunter Street, riding on cars and driving recklessly. There was a car show taking place at the nearby fairgrounds and a Cinco de Mayo parade in the area.

Stockton police officers said they saw between 100 to 200 people when they got to the area, and some of them threw rocks and bottles at the approaching patrol cars. Six cars were damaged.

Officers called for backup from San Joaquin County Sheriff's deputies. Deputies worked to lock down the street as officers responded to reports of a side show taking place at the Kmart.

Deputies questioned people parked in the area of the initial gathering along Martin Luther King Jr. Boulevard and said many of them were from out-of-town. Investigators are now looking at video from businesses in the area to identify suspects who damaged the police cars.

Sunday night one person was arrested for DUI and one for resisting arrest. No one has been arrested for attacking the police cars at this time.