Investigation into pregnancy of 13 year old 'state ward'

Victorian Premier Ted Baillieu said all support necessary would be provided to the young mother. Photo / Thinkstock

Authorities have begun an investigation into how a 12-year-old Australian girl got pregnant while reportedly under the care of the state.

The Victorian state government was unable to confirm reports that the girl, now aged 13, was under the care of the Department of Human Services when she conceived, but said it was looking into it.

"I can't discuss any previous history in relation to this case because it could lead to the identity of the child, and we're very focused on the best interests of the child," Community Services Minister Mary Wooldridge said.

Wooldridge said the girl, whose situation is also being investigated by police, was now living with her family and newborn baby.

"There are family supporting the young mum to be effective in the parenting role. But it is incredibly challenging as it is for anyone when you're 13 to try and deal with the challenges of motherhood," she told ABC radio.

Victorian Premier Ted Baillieu said all support necessary would be provided to the young mother, who apparently became pregnant while living at a residential centre run by a community services group.

"There has been a failure of the system ... and the question now is 'was the response appropriate?'," he said.

Earlier this year, two Victorian carers were stood down for leaving a 9-year-old boy in a park at night for at least two hours.

"There are lots of cases where the system fails but I'm not going to just use two cases that have been made public, but if there is a systematic failure it must be addressed," Baillieu said.

Child Safety Commissioner Bernie Geary has urged people to leave the family alone so the young girl can best care for her newborn.

"It's really important ... that they get left alone. The information that I have received is that they are actually frightened, the family is frightened of some of the spotlight that's being placed on them."

Geary said he expected the minister to request he take part in the investigation into the case, which he first became aware of on Tuesday.

- AFP, AAP