Police cordoned off part of a Leeds city centre street after being called to reports that a man had been assaulted.
The YEP understands the ambulance service contacted West Yorkshire Police shortly after 9am on Friday, August 31, after they had discovered the alleged attack victim.
The paramedics told the police they had been called to treat a man on Neville Street, Leeds, who claimed he had been the victim of an assault.
The alleged attack was said to have taken place at around 6am under the Dark Arches, not far from Neville Street, which is close to Leeds train station.
A spokeswoman for West Yorkshire Police told the YEP that a police cordon had been put in place at the scene where the man had been found.
The YEP understands the cordon was still in place while examinations of the scene were carried out to determine the exact circumstances behind the incident.
The man was taken to Leeds General Infirmary by ambulance where he was being treated for head injuries.
Because of the location of the incident, the investigation is being carried out by British Transport Police.