The family members were inside the apartment on 260 West 131 Street when police arrived just before 2:30 on Saturday afternoon.
The boy was covered in bruises and was unconscious and unresponsive. He was later pronounced dead at Harlem Hospital.
A group called 'Street Corner Resources' will be holding a rally outside the W. 131st Street apartment on Sunday at 2 p.m. in response to the 10-year-old's death.
There will be grief counselors on the scene for kids who may be stressed inside their homes.
The Administration For Children's Services released a statement on the incident.
"The safety and well-being of New York City's children is our top priority," an ACS spokesperson said. "We are investigating this case with the NYPD."
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