After stabbing her brother, aged 9, to death, a 12-year-old girl is currently being held in Tulsa police custody.

Police stated that the children's father was upstairs in their Tulsa home shortly before midnight on January 5. The daughter then woke them up and told them she had stabbed her brother.

The investigation is being conducted by the Tulsa Police Child Crisis Unit. According to a Tulsa Police press release, she is currently being held at Family Center for Juvenile Justice.

According to the news release, police responded to the incident on Thursday night.

Paramedics and firefighters arrived on the scene to perform CPR on the victim, a 9-year-old male when officers arrived.

The CPR was performed at the River Bank Plaza Apartments complex, according to the New York Post.

The boy 'was rushed to the hospital and taken into surgery,' but died due to his injuries shortly after 2:30 a.m. CT, police said.

This is the second homicide in the city of Tulsa this year, the department said.

Tulsa Police Department Chief Franklin tweeted: 'All homicides are tragic, but the 2nd homicide of 2023 in Tulsa shows a definitive societal problem. The question is, how does society address a child killing another child?'

Police have not revealed a motive for the killing, stating it will be the court's burden to uncover intent.

'Obviously, we did some interviews, but interviews with a 12-year-old are very preliminary,' Captain Richard Meulenberg from the Tulsa Police Department told Fox 23. 'This, unfortunately, has no easy end or easy path, this is going to be a long, convoluted process that's going to be extremely taxing on everyone involved in this.'