A South Sudanese woman in Australia has caused three of her children to drown after the car she was driving lost control and ended up in a lake.

According to the Herald Sun website, the incident happened today, in Lake Gladsman, in the west of the Australian city of Melbourne.

Twins Madit and Anger, both 4, and Bol, 1, were killed after the 4WD plunged into Lake Gladman on Manor Lakes Blvd in Wyndham Vale about.

Mrs. Akon Manaang was saved along with a young girl by a man, who jumped into the water and smashed the windows of the drowning car.

The girl has been rushed to the hospital in a critical condition.

A homicide squad is investigating the case.