A mother is facing a murder charge in the death of her 1-year-old son in Queens, according to New York City police sources.

The 15-month-old child died Monday afternoon at Jamaica Hospital after he was found at a house at 157th Street near 109th Avenue in Jamaica with blood on his chest, the NYPD said.

The boy's mother, 28-year-old Nicole Boodhai, was arrested Monday night, police sources said. She's charged with murder and endangering the welfare of a child.

Mom used box cutter on herself, police sources say

According to police, the mystery into the boy's death deepened when doctors later said there were no obvious signs of injury.

Investigators now believe the child was covered in his mother's blood when he was hospitalized. High-ranking police sources said the mother and the toddler were found inside a bathroom. It's believed she used a box cutter to slash her wrists.

Boodhai is hospitalized and in police custody, sources said. The medical examiner will determine the child's cause of death.

Shocking to neighbors

Neighbors said they're unsure how many people lived inside the home, but said the mother and son were private and friendly.

"I only knew, like I knew them face to face, you know, like just kind of you walk by your neighbors and you just, you know, a smile," Fateema Akter said.

Akter described a very frightening situation.

"I heard two screams. The first scream was a man, for sure, and it was like a very loud, aggressive scream. And the second one I heard sounded like a child, like a child screaming in fear," Akter said. "You know, it's the kind of scream like after something very painful happens."

"The crying, yeah. Something bad happened there. We heard it I thought and a lot of police people came. They took one baby like that," neighbor Miah Mannan added.

The home is on a quiet street near a park and a school.

"That house, I'm not too sure. We haven't gotten a chance to interact with them. They've been here a couple years now on this block and we saw them now and then, but we haven't had a chance to interact with them. But that's very tragic," Faisal Ayub said.

"It's just sad, really sad," a woman added.