Updated 12:13 p.m. Eleven people were injured Wednesday in a multi-vehicle wreck on the southbound 405 Freeway in Van Nuys.
The collision happened around 9:30 a.m. near Sherman Way.
Los Angeles Fire spokesman Shawn Lenske said the crash involved a big rig, a catering truck and four other vehicles.
"Six were ... minor to moderate. We have one serious. Those seven were all transported to local area hospitals. And we have four that were treated and released on scene," Lenske said.
At one point, the wreck blocked all lanes of the southbound 405 and backed up traffic for miles. The California Highway Patrol has reopened only the carpool and the number one and two lanes.
The cause of the crash remains under investigation.
— Bianca Ramirez
Updated 11:40 a.m.: The southbound 405 Freeway has partially reopened after a multi-vehicle crash Wednesday morning, according to the California Highway Patrol.
The fast lane, No. 2 and carpool lanes are open to traffic, but the No. 3 and 4 lanes remain closed until further notice, CHP announced in a SigAlert update via Twitter.
Live traffic data from Google showed heavy delays on the southbound 405, with backups to the Ronald Reagan Freeway (118).
— KPCC staff
10:58 a.m.: Multiple vehicle accident shuts down south 405 in Van Nuys
All southbound lanes of the 405 Freeway in Van Nuys are closed after an accident Wednesday morning, according to the California Department of Transportation.
At least four cars and a big rig were involved in the accident and a freeway lane was set up as a triage area, according to NBC4, which posted photos of the scene.
The accident occurred near the Sherman Way exit, and initially several lanes on the northbound side were closed but were later reopened, according to a SigAlert issued by Caltrans.
— KPCC staff
Correction: An earlier version of this story contained an error in a quote from Los Angeles Fire spokesman Shawn Lenske.