Specialist divers have carried out underwater searches in the River Maun as part of an extensive search operation for a missing Ollerton man.
Stan Shanks, 78, was last seen on Walesby Lane at 9.30am last Friday, April 29.
His disappearance has sparked searches by police, volunteers and specialist rescue teams but no trace of him has yet been found.
Notts Police say divers have already searched a stretch of river from the weir at Ollerton Island, to the weir near Walesby Campsite, and an area of reed beds at Ollerton Pit Top Woods.
On Thursday they are expected to search the fishing ponds, known as Little John Lakes, off Maida Lane, Ollerton.
When last seen Mr Shanks was wearing a green hooded jacket, a red jumper, grey trousers and a cap. He is described as 5ft 3ins tall, of broad build, balding and wearing glasses.
On Monday his son Terry issued a video appeal for him to come home, saying: “Dad if you’re listening, please contact us, or contact the police, we desperately need to know that you are safe and well.”
Video: Stan’s son Terry issued a video appeal on Monday
Police are also encouraging the Ollerton public to check their shed, garage or any outbuilding for any sign of Stan.
Anyone with any information as to Stan’s whereabouts should contact police on 101 quoting incident 417 of 29 April.