Los Angeles Fire Department crews extinguished a massive fire burning at a commercial building fire in downtown Los Angeles on Thursday after an hours-long battle.

It was reported at around 1:12 p.m., at which point crews responded to a row of commercial buildings with heavy smoke showing at Winston Street near S. Los Angeles Street. Around 2:04 p.m., the incident reached "major emergency" status as smoke continued to billow from the rooftop, with visible flames.

The fire extended to the adjacent large commercial building, and with over 88 firefighters battling the flames, additional resources have been requested.

Residents are advised to avoid the area of Los Angeles Street, Winston Street, Wall Street and E. 4th Street until just before 7:30 p.m., when firefighters finally reported that they had gained the upper hand on the flames.

The cause of the fire remains under investigation and no injuries were reported.