Officers were called by the ambulance service at approximately 4.38am this morning (Wednesday, July 31) to reports that a man had been assaulted on Call Lane.
The victim, 39-year old-man, has been taken to hospital with serious injuries.
A force spokesperson has confirmed that a 19-year-old man has been arrested on suspicion of assault and remains in police custody at this time.
Yorkshire Evening Post photographer Jonathan Gawthorpe captured these shots from the scene...
7. Call Lane incident
A 39-year old-man has been taken to hospital with serious injuries. | Jonathan Gawthorpe
8. Call Lane incident
A 19-year-old man has been arrested on suspicion of assault and remains in police custody at this time. | Jonathan Gawthorpe
9. Call Lane incident
How long the police scene will be in place is not currently known at this time. | Jonathan Gawthorpe
10. Call Lane incident
Forensic personnel were spotted taking notes of what they had found. | Jonathan Gawthorpe
11. Call Lane incident
Anyone who witnessed the assault is asked to contact police via 101 or by using the 101LiveChat quoting log 181 of July 31. | Jonathan Gawthorpe
12. Call Lane incident
Information can also be given via Crimestoppers on 0800 555 111. | Jonathan Gawthorpe