Bonang Bridgette Selai was found on Monday with her hands tied, Constable Tshifhiwa Mitileni said.
“The girl also had masking tape across her mouth,” he said.
The girl went missing on Sunday afternoon. A neighbour had sent her to a spaza shop and she never returned.
Police suspect the girl may have been raped.
A case of murder and rape had been opened.
No arrests had yet been made