The fire started in a first-floor apartment of a building on 165th Street just before 4 a.m.
Port Authority Police Officer Elijah Ali was on patrol when a frantic mom flagged him down outside Terminal 4.
Police say the Medical Examiner will determine the child's cause of death.
Police say it happened on Friday evening in Jamaica on 93rd Avenue at 168th Street while the victim was in a marked crosswalk.
Jimmy Cliff, a Grammy award-winning Jamaican reggae star and actor, is dead at 81, according to his family.
The fire broke out around 7:50 a.m. on Sunday at a residential home on 202nd Street between 113th Avenue and Murdock Avenue in Jamaica.