(AP) — Authorities in suburban Chicago say a 14-year-old girl is in custody for the death of an 11-year-old girl who lived in her home.

The Lake County State’s Attorney’s office said Wednesday they’ve approved a first-degree murder charge against the teenager in the killing Tuesday of the younger girl.

Authorities haven’t released details on the girls or how they’re related. But officials say both girls lived in the same Mundelein home, about 30 miles northwest of Chicago. No parent was home at the time of the slaying.

Mundelein Police Chief Eric Guenther says the older girl called 911 around 8:30 a.m. and answered the door for police.

An autopsy is being performed. Guenther says the body had multiple stab wounds.

A Wednesday hearing is expected in juvenile court.