CHICAGO (CBS) — Police were conducting a homicide investigation after a 3-year-old girl was found dead in her home in the Dunning neighborhood.

CBS 2’s Susanna Song reports the girl was found around 8:30 p.m. Sunday in her home in the 3300 block of North Natchez Avenue.

Investigators have not said how she died, or why police were called to the home, but she suffered apparent trauma to her body.

Detectives spent several hours overnight collecting evidence inside and outside the home.

Investigators were questioning one person at Area North police headquarters. Police would not say if that person is a relative of the victim, but neighbors said the girl’s mother was taken into custody.

Ashley Padilla, who lives upstairs from the victim, said the girl’s death is devastating, because she has three kids of her own.

“I have a 2-year-old, and a 4-year-old, and a 1-year-old. So the fact of hearing that it happened downstairs is just horrific,” she said.

Padilla said she’s heard from police and others that the girl’s mother told investigators she was napping when someone broke in and killed her daughter.

“From what I heard and what the cops had told me last is that the woman downstairs said that somebody broke in last night around 7, and that she was sleeping, and that when she woke up, she seen her daughter on the floor, covered in blood,” she said.

Padilla said she might be able to believe there was a home invasion downstairs, because someone broke into her car last week, and a neighbor across the street reported a break-in on Mother’s Day weekend.

She said normally there is a lot of yelling and screaming coming from the apartment where the girl lived, but Sunday night it was unusually quiet.

“They said that it happened when we were home, but we didn’t hear anything at all,” she said.