The body of a 22-year-old woman was found in her bedroom in Reitspark, Welkom, on Sunday, with a note next to her body reading: "Stop assaulting inmates."
According to police spokesperson Brigadier Motantsi Makhele, her hands were tied up and she had strangled marks around her neck.
"An open wallet with cards [and a] driver's license was found next to her body."
It is unclear what the motive of the killing was, but " the police are investigating a case of murder", Makhele said.
Anyone with information leading to the arrest of the suspect can contact Detective Warrant Officer Jerry Lenyane of Welkom detective services on 083 426 8343.