Five dozen Los Angeles firefighters battled a massive blaze that erupted at a commercial building early Monday.

Crews responded to the call involving a one-story commercial structure in the city's Panorama City area shortly before 1:30 a.m., according to the department. Heavy flames and downed power lines blocked access points to the building and created challenges for the 60 firefighters at the scene.

Raw video from OnSceneTV and photos from the department captured firefighters working to put out the blaze. It took nearly hour and 45 minutes for the fire to be extinguished, the department added.