A 7-month-old baby boy is dead after being taken to a Brooklyn hospital unconscious early Saturday morning, according to the city police department.

Police say they received a call before 7 a.m. of possible neglect at NYU Lutheran Medical Center in Brooklyn.

A 25-year-old woman had brought the unconscious baby boy, Dameen Mohammed, into the emergency room, according to the city police department, and he was pronounced dead at the hospital.

Sources told NY1 he had bruises all over his back.

Sources also told NY1 that the boy's mother brought the infant to the grandmother's home in Brooklyn, who sources said had primary care of the child.

The medical examiner has not yet determined the child's cause of death.

No arrests have been made, and police are investigating.

The boy lived on Elie Court in the Heartland Village neighborhood of Staten Island, according to police.

Neighbors NY1 spoke to said they did not know the family well, but they said they saw the parents with two children — the boy and a young girl — and they believed there was suspicious activity inside and outside the home.

"The little one we didn't see, because the little one was in a car seat," said one woman who did not want her face shown on camera. "Obviously it was an infant in the car seat, and they were constantly in and out. There was a lot of traffic, there was smoking outside."

The Administration for Children's Services said they are investigating the incident.

The agency has been under intense scrutiny lately due to several high-profile deaths of children.