Update 10pm: David Henderson has been located safe and well.
Gardaí have thanked the public for their assistance.
Gardaí in Dublin are seeking the public's assistance in locating a missing 44-year-old from Dublin.
David Henderson is missing from his home in Churchtown, Dundrum and was last seen on May 4 in the Portobello area.
He is described as being 6'1", with a slim build, brown eyes and sandy blonde hair.
When last seen he was wearing, grey trousers, a navy jumper and brown boots.
Anyone who has seen David or who can assist in locating him is asked to contact Dundrum Garda Station on 01-6665600, the Garda Confidential Line 1800 666 111 or any garda station.