Police on Monday confirmed that three family members have been shot and killed at Folweni, south of Durban.
According to the police, the family was traveling on the M35 when they were attacked from behind by unknown suspects traveling in two cars.
Other occupants of the car sustained serious injuries and were rushed to a nearby hospital.
Gwala said the motive of the attack is subject to ongoing police investigation. This is the third such attack on families in the province in a week.
On Tuesday night, eight people, including two women and six children, were shot and killed in Amatimatolo in Umzinyathi, where their homes were set alight. These cases are still under investigated.
On Thursday, a family was accosted by unknown gunmen, who fired multiple shots at the five members of the family aged between 19 and 34 in Nteke, Mariannhill.
Four of the family members died at the scene and the other victim died in hospital on arrival.
The Provincial Organised Crime Task Team members, National Intervention Unit, Crime Intelligence, Marianhill Detectives and KwaNdengezi SAPS embarked on an operation at Nteke area where they arrested three suspects for the murder on Saturday.
The fourth suspect, who was found in possession of an unlicensed firearm and 11 rounds of ammunition, was arrested on Sunday. The arrested suspects are aged between 21 and 30.
The KwaZulu-Natal Acting Provincial Commissioner, Major General Langa, praised the team for solving the case within two days.
“We will not tolerate people who kill innocent members of our community. We are confident with the investigating team that they will present a well prepared docket to secure a successful prosecution of the culprits,” he said.