Mohamed Megherbi, who has strong links to northwest London, was last seen in Roath on Tuesday, October 9 and concern is growing for his welfare.
A 26-year-old man from Llanedeyrn, has been arrested in connection with his disappearance and he remains in custody at Cardiff Bay Police Station.
Detective Chief Inspector Gareth Morgan, from the South Wales Police Major Investigation Team, said: “We have serious concerns for the welfare of Mohamed Megherbi who is originally from Algeria and had recently been living in Newport Road, Roath.
“We are urging anyone who knows him, anyone who may have seen him, or Mr Megherbi himself to please contact us or their nearest police station.”
If you can help, please contact South Wales Police on 101 or Crimestoppers anonymously on 0800 555 111 quoting occurrence number *416778.
Alternatively information can be submitted via the Police Major Incident Public Reporting Site: https://mipp.police.uk/operation/62SWP18A69-PO1