A man was shot with an air rifle as he walked along a public footpath in Northamptonshire.
The incident happened at about 3pm on Monday, near Camp Farm, near Charlton, in South Northamptonshire.
Officers are asking anyone who was in the area on Monday afternoon and who may have seen someone using an air rifle or air pistol to contact them.
Witnesses, or anyone with information, are asked to call Northamptonshire Police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.