Gardaí have released CCTV footage of the last known movements of missing Icelandic man Jon Jonsson.
The 41-year-old was last seen in the Whitehall area of Dublin at approximately 11.00am on Saturday February 9th.
He is described as being six foot tall, of medium build and with short brown hair.
When last seen he was wearing a black padded jacket.
He came to Dublin on holiday with his fiancée to attend a poker tournament.
He left the Bonnington Hotel, formerly known as the Regency Hotel, on February 9th and was seen on CCTV at McGettigan's Bar at 11.07am, exiting onto the Swords Road heading northbound towards the airport.
He was last seen at the exit of Highfield Hospital, heading northbound on the Swords Road, towards Collins Avenue.
Members of Mr Jonsson's family have come to Dublin to assist with the search.
In a statement, his family said: "Jon's disappearance comes as a complete shock to us and we have spent every waking hour since his disappearance searching for him all over Dublin.
"We are desperate for any information regarding his whereabouts.
"We are putting all of our trust in the public to help us with any clues that can result in finding him.
"We are eternally grateful for the help we have received and we continue to gratefully accept assistance, in any way shape or form."
Anyone who has seen Jon, or who can assist in locating him, is asked to contact Ballymun Garda Station on 01-666-4400, the Garda Confidential Telephone Line at 1800-666-111 or any Garda station.