Police are seeking public assistance to locate a 21-year-old man missing from Sydney's north.
Zayne McMillan was last seen around 2am on Sunday 29 December at an address on Edward Street, Lilyfield.
Officers from Leichhardt Police Area Command were notified and began searching for Mr McMillan after attempts to contact him were unsuccessful.
Police and his family have concerns for his welfare.

Zayne is described as being of Aboriginal/Torres Strait Islander appearance, approximately 165–170cm tall, with a medium build, light brown hair, and a full beard.
He was last seen wearing a black hooded jumper, black shorts, and black shoes.
He is known to visit areas including Coogee, Maroubra, Dulwich Hill, Lilyfield, the Sydney CBD and Gosford.
Members of the public with information about Mr McMillan's whereabouts are urged to contact Crime Stoppers on 1800 333 000 or via the crime stoppers website.
Reports are treated confidentially and Police remind the public not to provide information through NSW Police social media channels.