Baseball fans who gathered in downtown Los Angeles to celebrate the Dodgers' World Series victory threw projectiles and fireworks at officers who tried to disperse them, police said.

The “hostile” crowd that gathered near 9th and Flower streets was deemed an unlawful assembly late Wednesday, Los Angeles police said on social media.

“Leave the area immediately and follow all officers’ instructions,” the department said on social media.

As police ordered the dispersal, the crowds moved east toward 8th Street, police said.

“Various projectiles are being thrown at LAPD officers in the Olympic area & Grand,” the department added. “Additional resources are responding to this area to assist.” If you find yourself on the street, at or near this intersection, leave the area immediately & follow the instructions of the officials.

Police said they also received reports of looting nearby. The ministry's central department said in a statement posted on social media early Thursday that arrests had been made.

Mayor Karen Bass previously warned that “violence will not be tolerated” as the city celebrated its victory over the New York Yankees.

“The LAPD is currently on tactical alert and has activated a strategic plan to protect communities and businesses,” she said, “which includes a proactive response and coordinated strategy with regional partners to ensure all Angelenos can celebrate safely.”