A wheelchair-bound woman, her caregiver and her husband were killed in an attack on their home in Florida, on the West Rand, on Friday Johannesburg police have confirmed.

Captain Siphiwe Ndlovu said an 87-year-old woman was severely wounded in the attack at 1pm.

She and the other three sustained head wounds, he said. "We cannot confirm with what object the wounds were made with or the motive for the killings."

Police could also not say whether anything was stolen during the attack.

The gruesome scene was discovered by the couple's daughter and her fiancé when they returned from a holiday on Friday afternoon.

Netcare 911 spokesman Mark Stokoe said the elderly survivor was the girl's grandmother. She was stabilised at the scene before being taken to hospital.

Sapa