CHICAGO — Chicago police are looking for the suspect who killed a teenage girl, found dead Saturday afternoon in the North Lawndale neighborhood on the city’s Southwest Side.

According to police, a 17-year-old girl, later identified as Chiyenne Washington, was found unresponsive just after 1 p.m. Saturday in a home in the 1200 block of South Washtenaw Avenue. She was taken to an area hospital, where she was pronounced dead.

The Cook County Medical Examiner’s Office ruled the cause of Washington’s death to be asphyxia and assault. Detectives opened the case as a death investigation but have since changed it to a homicide investigation.

Police say the investigation is ongoing and nobody is yet in custody.