By Trang Do

PHILADELPHIA (CBS) — A 6-year-old boy has died after Philadelphia police say he was shot in the chest Sunday. It happened inside a home on the 4600 block of Kendrick Street in Upper Holmesburg, after 12:45 p.m.

Police have not yet revealed what led to the shootings, whether the child shot himself or if someone else shot him. Around 5:30 p.m. Sunday, neighbors comforted the child’s uncle, who came home to discover that the boy was killed.

The boy was shot on the left side of his chest. A family member rushed him to Jefferson-Torresdale Hospital in critical condition. He was pronounced shortly after 1:30 p.m.

Detectives and the Crime Scene Unit spent about three hours on the scene, going in and out of the house as well as the house next door.

Detectives were seen escorting one woman from the home where the shooting happened.

Neighbors told Eyewitness News they did not hear gunshots but were alerted to the shooting when officers converged on their street.

“I didn’t hear a shot fired,” neighbor Greg Van Ball said. “There was no indication that there was anything, no screaming, no nothing. I don’t know what happened. I know it’s going to be super, super sad. I know the family and I know the little guy. It’s really, really upsetting.”

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Neighbors say the boy had two brothers who also live in the home.

Police have not yet released the 6-year-old boy’s name.