ROWLAND HEIGHTS, Calif. (KABC) -- Flames engulfed a part of a strip mall in Rowland Heights, prompting a large response from firefighters Tuesday night.
L.A. County Fire Department crews responded to the two-alarm blaze that erupted at about 10 p.m. near Colima Road and Nogales Street.
Plumes of black smoke rose to the sky near the edge of the strip mall as the roof of one of the businesses, a restaurant, appeared to collapse.
The department said at 12:06 a.m. Wednesday that "good progress" was being made and that no injuries were reported.
"Much of heavy fire activity has diminished substantially. Due to size of incident, units expected to remain on-scene into early morning," the department tweeted.
It was unclear how the fire started.
More than 50 firefighters responded to the scene, and no injuries were reported.
The extent of damage to nearby businesses was not known.