By CBSLA Staff

BEVERLY HILLS (CBSLA) — An unlawful assembly was declared on Saturday afternoon in response to a clash during a weekly pro-Trump rally in Beverly Hills.

Police estimated at least 4,000 people were gathered.

READ MORE: Warning For El Segundo, Dockweiler State Beaches Extended

Supporters of President Donald Trump planned to have the rally every weekend leading up to Election Day, so this event was expected to be the last of such rallies.

Beverly Hills Police said in a tweet that residents should avoid the area near the Beverly Hills sign until further notice.

Street closures were expected on North and South Santa Monica Boulevard between N. Bedford Dr. and N. Crescent Dr.

READ MORE: Proof Of Vaccination, Masks Required When 'Hamilton' Returns To Pantages Theatre

“Approximately 40 protesters did assemble at Roxbury Park and then marched to the USA Freedom Rally,” said Beverly Hills police Lt. Max Subin.

There were dueling rallies between Trump supporters and counter-demonstrators.

“The protester from Roxbury Park got into a violent fight with a pro-Trump protester. It was at the point that an unlawful assembly was declared by the Incident Commander and the Roxbury Park protesters did leave and march back to Roxbury Park,” Subin said.

MORE NEWS: Terrence Clark Announced As NBA Draft Pick After Fatal Crash In Northridge

There were no arrests, according to police.

The election security plan is set to run through at least Wednesday in preparation for potential unrest, but Beverly Hills police are ready to expand that if the outcome has not been decided and it’s believed the force needs to stay on the street.