LOS ANGELES (AP) — Rioting crowds took to the streets of Los Angeles after The Dodgers won the World Seriessetting fire to a city bus, breaking into shops and setting off fireworks. A dozen arrests were reported by police on Thursday, but officials stressed that most fans celebrated peacefully.

Video showed revelers throwing objects at downtown LA police as sirens blared and officers told them to leave the area Wednesday night after the Dodgers won. Yankees in Game 5 in New York.

Another video showed someone sitting on top of a bus waving a Dodgers banner and people fleeing a Nike store with boards full of sneakers before throwing the merchandise into cars parked outside. No injuries were reported.

Despite some unrest, “the overwhelming majority of last night’s celebrations were joyful and peaceful,” Mayor Karen Bass said at a news conference Thursday, discussing the logistics of Friday’s planned victory parade.

“We will work to keep Angelenos safe, as always,” Bass said, stressing that “violence of any kind will not be tolerated.”

The mayor wore a Fernando Valenzuela t-shirt, noting that the beloved Dodgers pitcher who died last week would have turned 64 on Friday. Bass said he would send a Dodgers jersey to New York City Mayor Eric Adams to wear at City Hall “because he lost the bet.”

Officials said the Los Angeles Police Department will be on high alert throughout the week to protect communities and businesses in the city, which has been the site of previous unrest following championship wins by both the Lakers and Dodgers.

There were some “unruly and at times violent and hostile celebrations” after Wednesday’s victory, with several acts of vandalism, including the burning of a Metropolitan Transportation Authority bus, LAPD spokesman Officer Drake Madison said in an e – email.

The arrests were on charges such as failure to resolve, receiving stolen property or commercial burglary, Madison said. There were also some instances of downtown street takeovers, and police used less lethal munitions to control more hostile and violent crowds, Madison said. In the coming days, detectives will try to identify those responsible for the murders, he said.

Los Angeles County Sheriff Robert Luna said his deputies will be on full alert for various events, including Dodgers victory celebrations, Halloween festivities and the upcoming election. Luna said Wednesday night’s problems were caused by “a very small segment of the East Los Angeles communities. Most of them celebrated because they love their Dodgers.”

Dodgers intend to commemorate their championship Friday, with a parade downtown followed by a celebration at Dodger Stadium. The team said Wednesday that due to logistics, traffic and timing, fans will not be able to attend both events.

The parade was expected to include members of the Dodgers riding double-decker buses on a 45-minute route through city streets.

Officials on Friday urged them to work from home and use public transportation when possible.