KwaZulu-Natal police have launched a manhunt for five men who robbed and tortured a family on a farm near Cramond.

Police say one of the family members noticed the men making their way onto the Midlands farm on Sunday night.

As he opened the door to investigate, two armed suspects forced themselves into the house - hitting the man in the process. The other three suspects then made their way into the house as well.

Police say the men demanded money, keys to the safe as well as guns.

The police's Joey Jeevan says one of the suspects boiled water and poured it on the victims - one of whom is a two-year-old child.

She says the family members who were hospitalised have been discharged and are on the road to recovery.

Jeevan has urged community members to assist with their investigation.

"The suspects ransacked the house and the vehicles parked outside and took jewellery, a 9mm pistol and a large amount of cash. They fled from scene in a gold Toyota Run-X with false GP registration plates. Anyone with information that will assist can contact the Crammond Police Station or Crime Stop," she said.