Brighton Newman, 4, Melissa Abdilla, 44, and Emma McElroy, 23, were last spotted at Parramatta train station on September 13, The Parramatta Advertiser reports.
NSW police said they believe the trio were headed to Blacktown, but they have not been seen since. Officers are concerned for the women and boy’s welfare.
The young boy is described as having long wavy blonde hair. Ms Abdilla has a thin build and long blonde hair, while Ms McElroy is of medium build with long auburn coloured hair.
Anyone who sights them is urged to contact Crime Stoppers 1800 333 000.
This article originally appeared on Marie Claire.