Authorities say the death of a 4-year-old girl who was found with the cord to a set of blinds wrapped around her neck has been ruled a homicide.

News media outlets quote Bibb County Coroner Leon Jones as saying Friday that Carlene Jane Rigby died of asphyxia by strangulation. Rigby was found dead in her bedroom March 22.

Bibb County Sheriff's Lt. Sean DeFoe was quoted by the Telegraph of Macon as saying no arrests have been made and the girl's death remains under investigation.