The infant was found unconscious and unresponsive at an address on 48th Street in Borough Park.
Officers responded to a 911 call on Saturday morning about an unresponsive infant at the West Brighton Houses.
A Kansas City mother was arrested and charged Friday after her 1-month-old infant died from being placed in an oven, according to the district attorney's office.
A medical examiner on Tuesday released the manner of death for a baby whose mother accused a Georgia hospital and others of decapitating during delivery, ruling it a homicide.
Police say the infant was housed at the Queens County Inn and Suites in Long Island City.
Federal safety regulators are pushing ahead in their efforts to make baby loungers safer.