Desperate search for mum and her four kids – including a two-week-old baby – who have been missing since Friday

Police are desperately searching for a mother and her four children, including a two-week-old baby, who have been missing for three days.

Rochelle Watts, 35, her two sons aged 15 and 10, and two daughters aged eight and two weeks, were last seen in Goulburn, about two hours south-west of Sydney, about 2.30pm on Friday.

Also missing is the family’s German Shepherd, Elsa, who is believed to be with Mrs Watts and her children.

Authorities say they have serious concerns for the family’s well-being.

Ms Watts is known to spend time in the Goulburn and Tirrannaville areas.

Police are also investigating a report that the mother and her children may have been seen as far away as the town of Murgon in southeast Queensland.

Mr Watts is described as 165cm tall, with red hair and hazel eyes.

Anyone with information about Watts and the whereabouts of her children is urged to contact Goulburn Police Station or Crime Stoppers on 1800 333 000.

Rochelle Watts, 35, (pictured) her two sons, aged 15 and 10, and two daughters, aged eight and two weeks, were last seen in Goulburn on Friday