The 49-year-old was found on Saturday morning.
A man has died after being found with serious injuries on a country lane near Huddersfield.
The 49-year-old was discovered by West Yorkshire Police on Common End Lane in Lepton on Saturday morning.
He died in Leeds General Infirmary on Sunday evening.
Detective Inspector Lee Donnelly of Kirklees CID said: “Although we still do not have a complete picture as to the circumstances, at this stage, we are not treating it as suspicious.
“A forensic post mortem will now take place to further establish the cause of death and assist in unravelling the full nature of this incident.
“We are supporting the man’s family at this difficult time and continuing to develop a chronology of events.
“Our CCTV enquiries have allowed us to track some of his movements prior to the incident.
“It is important, however, that we can fill in the gaps of the timeline that led to him sustaining these serious injuries.
“I would ask that anyone who has any information, however significant you may believe it to be, to come forward.”
Please contact Kirklees CID via the non-emergency number 101 quoting reference 390 of January 20.