All lanes on the eastbound 10 Freeway in Baldwin Park were blocked Tuesday night after a helium truck overturned, prompting a hazmat response, according to CHP.
The crash occurred about 8:10 p.m. just east of the 605 Freeway, California Highway Patrol Officer Elizabeth Kravig said. A SigAlert was issued and all eastbound lanes were expected to be shut down for several hours.
A hazardous materials team was working to determine if any of the helium leaked from the tanker, she said. Aerial video from Sky5 showed the truck stopped across all freeway lanes as of 11 p.m.
Lanes reopened by 11:30 p.m., CHP stated on Twitter.
There were no injuries reported, Kravig said.