From NBC Los Angeles:

With the Deferred Action for Childhood Arrivals program renewal deadline looming, immigration rights protesters staged a demonstration outside Sen. Dianne Feinstein’s Westwood office Thursday, blocking traffic and drawing officers in riot gear.

The group began gathering on the corner of Wilshire Boulevard and Veteran Avenue around 9 a.m., and about an hour later, they spilled into the intersection. Nine people were arrested.

As traffic began backing up, police declared an unlawful assembly around 10:30 a.m., and officers began making arrests a short time later as demonstrators refused to leave the intersection.

Some drivers tried to wind their way through the demonstration while police were making arrests.