Los Angeles firefighters battled a blaze at a church in University Park on Thursday morning.
The blaze was reported about 6:25 a.m. at 720 West Washington Boulevard in the South Los Angeles neighborhood.
Firefighters remained on scene three hours later and were expected to stay battling "stubborn and largely smoldering fire," Los Angeles Fire Department officials said in an updated alert.
The two-story, 19,811 square-foot church was described as being abandoned.
The church was built in 1924 and was a mortuary before it housed places of worship, fire officials said.
Responding firefighters were met with heavy flames and were attacking the blaze on the roof.
The blaze was burning near the 10 Freeway, and smoke was wafting over to the highway, aerial video from Sky5 showed. Smoke from the blaze could be seen for miles. Fire officials said motorists should anticipate congestion in the area throughout the day.
They were asked to avoid Washington Boulevard between Figueroa Street and Union Avenue.
No injuries were reported during the blaze. The building was eventually red tagged and was deemed unsafe for human occupancy.