Police officers have been leafleting rail passengers in a desperate search to find missing Michael Denon-Ross.
Michael disappeared from his Gloucester home on Halloween and police are becoming increasingly concerned for his welfare.
It's hoped rail passengers could hold vital clues to finding the 59 year old, who is believed to have caught the Cardiff train from Gloucester at about 9.26pm last Thursday (31st).
Officers handed out leaflets at Gloucester railway station, and Cheltenham in an attempt to trigger memories of the man from the Horton Road area.
Michael has a serious mental illness and does not have any medication with him, so concern for his welfare is mounting.
It is known that he may head for secluded areas or ditches, and dog walkers throughout the county have been urged to look out for him.
Michael is white, around 5ft 11 inches tall and has brown/grey balding hair and is unshaven.
When last seen he was wearing a brown jacket, blue striped shirt and dark coloured trousers as seen in the attached picture.
He often wears a green cap and is known in the Henrietta Street area of Cheltenham.
Anyone who has seen him or knows of his whereabouts is asked to call 999 or 101 quoting incident 478 of 31 October.