Cops Hunting Arsonist Who Set Blaze That Left 2 Little Girls and a Baby Dead: Reports

A Chicago apartment building was torched early Tuesday, causing a deadly blaze that left four people dead, cops say.

Cops say three little girls — including an infant — and a man are dead after an arsonist torched a Chicago apartment building early Tuesday, according to reports.

Multiple people leapt for their lives from porches after a man ignited the 32-unit building in the South Chicago neighborhood following an argument he had with a woman there, according to local reports.

Little Mellanie Watson, 3 months, was found beside a man who'd jumped to escape the blaze. She was rushed to a hospital, where she was pronounced dead.

Read: Fire Chief Investigated for Deadly Arson That Killed 10 at Holiday Inn

Inside the building 4-year-old Madison Watson, and Shaniya Staples, age 7, who were found dead in the same apartment once firefighters finally extinguished the deadly fire.

In another unit, officials say they found the body of the adult male victim.

Firefighters encountered heavy flames on the second and third floors after receiving reports of the fire at 1:35 a.m., the Chicago Tribune reported.

Read: Video Shows Arsonist Accidentally Setting Himself on Fire: Cops

Fire had engulfed stairs in the building as well as the rear porches. According to Deputy Commissioner Arriel Gray, firefighters were forced to combat the blaze from the outside due to its extreme intensity.

At least two others were reportedly injured in the blaze. A 36-year-old man and 48-year-old man were both treated at area hospitals.

A police spokesperson told that the arson unit is investigating the matter. Further, police say a person of interest has been identified and is currently being questioned as part of the investigation.

Watch: Principal Living in Motel After Angry Students Allegedly Start House Fire