By CBSLA Staff

CANOGA PARK (CBSLA) – Los Angeles Firefighters and paramedics have responded to reports of a structure fire at a one-story commercial building on Monday afternoon. Early reports maintained that the 50 foot-by-100 foot building was home to a marijuana growth operation. Since then, it has been suggested by a neighboring business that it is in fact a CBD extraction business.

It took nearly 150 firefighters from various stations around Los Angeles to combat the fire, however they were able to extinguish the threat within just 75 minutes.

Nearby vehicles and civilians were threatened by the fire and explosions within the building. Three adult males are being treated for serious burn injuries, two of which are considered to be critical, while the third man is considered to be in serious condition.

Fire crews on hand engaged in defensive operations as soon as 12:30 PM, with the fire being contained and extinguished by 2 PM.

At one point the fire had been upgraded to Major Emergency Status, but no evacuations were ordered, other than those other businesses within the immediate area. No other buildings in the area sustained damage.

Motorists should expect delays in the surrounding areas. Canoga Avenue will remain closed between Roscoe Boulevard and Parthenia Street until LAFD operations are complete. Crews will remain in the area to extinguish any lingering hotspots, and to begin an investigation into the origin of the fire.

As of now, there are no indications as to what the name or nature of the business truly are, as well as their legal status to operate.

More to follow.