Derek Pontin, 82, missing from Blackwood since Thursday
Police are concerned for the welfare of a missing 82-year-old man who has not been seen since Thursday.
Derek Pontin from Blackwood, Caerphilly county, was last seen on Bridge Street between 15:30 and 16:00 GMT.
Gwent Police appealed for information, saying they were concerned about him due to his age and the current cold and wet weather.
Mr Pontin is said to be interested in nature and is known to walk in the countryside around the Blackwood area.
He is 5ft 8in (1.72m) tall, of slim build and bald. He was last seen wearing a trilby hat, a khaki-coloured coat and carrying a rucksack.
Anyone with information is asked to call Gwent Police on 101 quoting LOG 379 7/11/13.