71-year-old Derek Arnold has not been seen for three weeks.
Officers searched fields and woodland near Bentley, Atherstone this week.
Derek has not been seen since the 8th June, and was reported as missing on the morning of 9 June. He was last seen at his home in the Stockingford area of Nuneaton, at 11 o’clock.
Derek is described as being white and 5ft 5in tall with white hair. He was last seen wearing glasses, blue joggers and a white check shirt.
After a week of a searching Detective Inspector Cindy Stephenson from Nuneaton CID said “We have used all the resources available to us to carry out intensive and extensive searches of the area but unfortunately have been unable to find Derek as yet. Our searches and investigations will continue but our concerns are growing with every hour that passes.
We are asking the public to keep a watch out for Derek. If you think you may have seen him or have any information at all, even if it seems insignificant, please do come forward immediately.”
Anyone who sees Derek is asked to call 999. Anyone with other information that could help police in their search should call 101 quoting incident 154 of 9 June 2021.