Mother and newborn missing in Sydney

Police have appealed to the public to help locate a mother and her two-day old newborn who slipped out of a Sydney hospital.

Yhuwadee Gaewvanna, 30, was last seen at Randwick Hospital about 4.30pm on Friday before she disappeared with her baby, sparking serious concerns for their welfare.

While it's possible she may be with friends, police say they haven't been able to locate the woman, described as being of Indian sub-continental appearance and 160 cm tall.