An investigation has been launched after a man was assaulted. 

West Yorkshire Police said officers were called by staff at Bradford Royal Infirmary. 

The man had gone to the hospital with stab wound injuries. 

A spokesperson for West Yorkshire Police said: "Police were called at 5.46am on Monday (May 1) by staff at the Bradford Royal Infirmary that a man has presented with stab wound injuries.

"Early investigations showed the man had been assaulted at a property on Ridgeway, Wrose, a couple of hours earlier.

"The 33-year-old man was treated in hospital for non-life-threatening injuries.

"A 22-year-old man was arrested and released without charge."

They added: "Enquiries are ongoing by Bradford CID. Anyone with information or who saw anything suspicious on Ridgeway in the early hours of May 1, is asked to contact police via 101 or use the Live Chat Facility at westyorkshire.police.uk/contactus quoting log 263 of May 1."