A greater-alarm fire was burning Wednesday in a vacant commercial building in the North Hollywood area.
The fire was reported in the 6200 block of Laurel Canyon Boulevard about 6:40 a.m., according to the Los Angeles Fire Department.
Firefighters worked to extinguish the flames and prevent them from spreading to other structures. No injuries were reported.
About 45 minutes after the fire began, the LAFD reported that the building partially collapsed and the firefighting effort shifted to a defensive operation.
A man was taken into custody in the area as a possible arson suspect, according to Fox 11. Authorities could not immediately confirm that report.