SUN VALLEY, LOS ANGELES (KABC) — Dozens of vehicles were engulfed in flames after a fire broke out at a recycling yard in Sun Valley Sunday afternoon.

More than 100 vehicles were well involved when the fire erupted at the location in the 9100 block of Tujunga Avenue shortly before 4 p.m., according to the Los Angeles City Fire Department.

In just under an hour, the blaze was determined to be a major emergency fire, and approximately 100 firefighters responded to the scene, officials said.

Fire officials declared the stubborn blaze a knockdown shortly before 6:30 p.m., according to the Los Angeles City Fire Department’s Twitter page.
Update #Fire; 6:24PM; 9128 N Tujunga Ave; #SunValley; KNOCKDOWN: Over 150 FF in 2 hours 16 min. No …

— LAFD (@LAFD) April 18, 2016

Thick black smoke was seen growing above the yard from miles away.
@ABC7 Sun Valley fire

— Oliver Summers (@DukeOfPico) April 17, 2016

— george (@Allen2541) April 17, 2016

— Crystal Jimenez (@Jade_ethynn) April 17, 2016

No structures were threatened and no injuries were reported, fire officials said.

The cause of the blaze was under investigation.