The fire was reported near Slauson Avenue at around 11:30 p.m. Monday.
The blaze was knocked down, but it prompted a closure of all southbound lanes of the 5 Freeway. Traffic was at a crawl through the area. Lanes began reopening around 6:30 a.m.
Watchout earlybirds! Standstill in Commerce, 5 SOUTH near Slauson, cleaning up from earlier fire, use Telegraph! pic.twitter.com/i7qVOLMtwp— Alysha Del Valle (@ABC7Alysha) July 7, 2015
Several northbound lanes were closed but have since reopened.
It was not clear when the lanes would be reopened.