By CBSLA Staff

CHATSWORTH (CBSLA) — Los Angeles firefighters extinguished a large blaze at a Chatsworth commercial building late Wednesday night after a 90-minute firefight.

Crews first responded to the Arizona Pipeline Company building in the 20500 block of Sunburst Street at about 9:50 p.m. and found heavy fire and smoke coming from the roof of the building, according to the Los Angeles Fire Department.

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Just after 10 p.m., firefighters transitioned to a defensive operation and additional crews were called to the scene. A total of 16 fire companies were assigned to the fire and were able to successfully keep the flames from spreading to nearby buildings.

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One firefighter was taken to the hospital with a non-life-threatening burn injury, and the building was red-tagged due to the potential for collapse.

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The cause of the fire was under investigation by the LAFD arson team.