A Rottweiler is said to be behind the attack on a grandmother and her granddaughter in KwaDukuza on Thursday. (Adem Altan/AFP)

A 67-year-old KwaZulu-Natal grandmother and her 3-year-old granddaughter sustained critical injuries after being attacked by a Rottweiler, paramedics said on Thursday.

Samantha Meyrick, from privately-owned first responder company – IPSS Medical Rescue, said they attended to the two victims at the scene of the attack in KwaDukuza, KwaZulu-Natal.

“Both patients were stabilised on scene by IPSS Medical Rescue and transported to a nearby hospital under the care of an IPSS Medical Rescue advanced life-support paramedic,” she said.

Meyrick said the circumstances surrounding the attack were unknown, but it was expected that police would investigate.

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