The fire was reported at about 2:55 a.m. at an apartment building at 5936 Martin Luther King Jr. Way, which is near 60th Street, the dispatcher said.
Crews responded quickly, she said, and contained the blaze by 3:05 a.m.
Wednesday afternoon firefighters tended to a fire at the same address. That one-alarm fire was reported at 1 p.m. and brought under control by 3:57 p.m., the dispatcher said.
No one was injured in this morning's blaze, but the cause of the fire remains under investigation.