By Richard O'Reilly
Police in Derry-Londonderry say they're 'increasingly concerned' for the welfare of Sam Christopher Comber.
The thirty-nine year old from the cullion area was last seen in the city on Sunday.
Also known as Sam Harold, he was seen at a supermarket in the Quayside area before cycling towards the Peace Bridge . His bike was later found in a lay-by in the Newbuildings area.
Police say he was also seen in the Ice Wharf on Sunday afternoon.
Anyone with information on his whereabouts is asked to contact the PSNI.
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