Dog walkers are being asked if they remember seeing missing man David Leman and his dog, Millie, is Skegness on Monday morning. Millie is a black dog with a white patch on her chest.
The search for missing dog walker David Leman is being stepped up by Lincolnshire Police, who say they are "very concerned " for his welfare. Mr Leman, who is 51, has been missing since Monday morning. He parked his car in South Parade car park in Skegness and took his dog, Millie, for a walk.
Millie was found later that day with her lead attached but her owner is still missing. The Coastguard helicopter and search teams have helping in the search, as have Louth Search and Rescue Dogs.
Mr Leman is of mixed race, around 6 feet tall with a shaven head. His clothing has not been confirmed but is thought to be jeans and a hooded jacket.
Police would particularly like to hear from any dog walkers who may have seen David and Millie - she is a black dog with a white patch on her chest and was wearing a red collar. Anyone with information should contact Lincolnshire Police on 101, quoting the incident number.