Two to five vehicles collided Friday night on the northbound Hollywood Freeway in North Hollywood, prompting closure of lanes and an on-ramp and backing up traffic, according to the California Highway Patrol.
The multiple vehicle crash was reported at 9:21 p.m. near Victory Boulevard, said CHP Officer Tatiana Sauquillo.
"There were multiple vehicles involved," Sauquillo said. "The extent of injury and number of victims is unknown. Patients are being evaluated now."
Sauquillo said two right lanes were closed to traffic in the area, and the Victory Boulevard on-ramp was also closed.
The cause of the crash was under investigation.