A 70-year-old man who went missing from a care home in Stickney, was found almost four hours later.
Police officers said they received a call at about 2.30am on Saturday, from the care home regarding the man, who suffers from dementia.
They said they later received a call just before 8am the same day from a member of the public who had found the gentleman.
The said he was very cold and had been taken to hospital for treatment.
A spokesman for Lincolnshire Police thanked the member of the public and all others who helped circulate the appeal to find the gentleman.