Uitenhage police in the Eastern Cape have opened an inquest docket after a mother and her twin toddlers died when a fire engulfed their home in the informal settlement of Kamesh.
Police spokesperson Captain Gerda Swart said the family was asleep when their home caught fire.
She said police and the fire department were called to the scene, where the home was already engulfed in flames.
The mother, Vuyokazi Klaas, 35, and her twin boys Abongile and Bonginkosi Klaas, aged four, died.
The father, 42, who was the sole survivor, was taken to a local hospital for treatment.
Swart said the cause of the fire was unknown and the matter was currently under investigation.