And they believe it is the body of missing Northamptonshire man Colin Addington, who was last seen last Tuesday morning.
Police had discovered the 55-year-old’s van near Pitsford Reservoir later the same day after he did not turn up at work.
A search of neighbouring villages took place before officers focused on the reservoir area itself from Wednesday onwards.
It is understood a body was found on Saturday.
His death is not being treated as suspicious and officers are now preparing a report for the coroner.
Police have thanked the public for their help during the searches.