Three weeks since he disappeared, there has been no confirmed sighting of missing Derry man John Concannon.
Mr. Concannon, who suffers from dementia and has difficulty communicating, has been missing since November 10th.
There have been a number of reported sightings of the 71 year-old but none have been confirmed.
Mr Concannon is described as being about 5’6″ tall, of medium build and with grey hair. He was wearing a black and grey beanie hat, a black coat, checked shirt and navy trousers.
John’s brother Micheal Concannon is again asking people to help find him:
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