A massive fire engulfing multiple cars ignited inside an auto yard in Pacoima early Tuesday.

The greater alarm fire was reported shortly after 4 a.m. in the 12400 block of West Branford Street, the Los Angeles Fire Department stated in a news alert.

Crews arrived to find multiple fires burning inside a fenced auto yard where multiple vehicles were stacked on top of each other.

Firefighters were facing a water supply challenge at hydrants and were working to find alternate supplies, the news alert stated.

The blaze prompted firefighters to go into a defensive mode with ladder pipes and large diameter hand lines in place.

More than 100 firefighters attacked the blaze for 2 hours and 20 minutes before flames were knocked down shortly before 6 a.m., the LAFD stated in an update.

No injuries have been reported in the fire.

The cause of the fire remains under investigation.