One person was found dead inside an apartment in Chinatown after the building caught fire Tuesday morning.
The fire began about 7:30 a.m. in the 900 block of West College Street, Los Angeles Fire Department spokesman Brian Humphrey said.
Officials initially indicated the fire was in the 900 block of Centennial Street but later updated the address.
Aerial video from Sky5 showed a bottom-floor apartment unit with flames burning out onto a patio area.
At one point, firefighters broke through a fence in order to attack the flames.
More than 80 firefighters were called to the scene and quickly gained control of the blaze, knocking it down shortly before 8 a.m., Humphrey said.
The fire was contained to one unit, which had a smoke alarm but was not equipped with optional fire sprinklers, Humphrey said.
Inside the unit, firefighters discovered the body of an unidentified adult, Humphrey said.
One other person was treated at the scene for smoke exposure.
The cause of the fire was under investigation.