Tasmania Police and the family of missing man Naz Woldemicheal have again appealed for him, or anyone who has seen him, to contact them.

19 year old Nazrawi Samson Woldemicheal has not been seen since Sunday 9 October when he left his unit at Trinity House, North Hobart.

There are serious concerns for his welfare. There have been several unconfirmed sightings of Naz in the North Hobart and Hobart CBD areas.

Naz can be reassured he is not in any trouble, but his family needs to know that he is ok.

He is around 170cm tall, of thin build with curly short black hair.

Anyone with information that may assist police to locate Nazrawi and make sure he is ok is urged to call Crime Stoppers on 1800 333 000 (this can be done anonymously) or the Hobart Police Station on 6230 2111.