Holroyd Police have concerns for a missing 49-year-old man who may be travelling with his two children and have asked for assistance from the public to locate them, NSW Police say.
About 6.30pm today Neville Brown left a South Wentworthville address with two of his children, a 12-year-old boy and 10-year-old girl.
It is believed that they left the area in a motor vehicle described as a white, Holden Statesman with a NSW registration of CM 84 JM.
Investigators have concerns for Mr Brown and his two children.
Police from Holroyd Local Area Command have conducted extensive searches of nearby streets and suburbs but without success.
Investigators have visited numerous addresses overnight that Mr Brown is known to frequent, but the family have not been sighted.
Neville Brown is described as being of Caucasian appearance, 49-years-old and between 170cm and 180cm tall.
He has a medium build with grey hair and blue eyes.
Anyone with information about the missing people is urged not to approach the vehicle or its occupants but to contact police on Triple Zero (000) immediately.
Police are urging anyone with information in relation to this incident to call Crime Stoppers.