Los Angeles firefighters found a house fully engulfed in flames shortly after 2:22 a.m. Wednesday.
After extinguishing the fire, they found a woman, man and a cat deceased, KCAL reported.
The fire may have started in the kitchen, firefighters said.
On its Facebook page, LAFD officials wrote: "A single 9-1-1 call was received at 2:22 AM on February 8, 2023, with the caller hanging up before their needs could be determined. Because the Caller ID feature of their wired telephone provided both a callback phone number and a definitive address, an LAFD crew was promptly dispatched to investigate, as dispatchers sought unsuccessfully to reconnect with the caller.
The initial Los Angeles Fire Department responders arrived to find fire visible from the rear of a one-story home at 3537 May Street, and immediately summoned additional firefighting resources."