Four men arrested in connection with a serious sexual assault in Oxford city centre remain in custody today.
They were arrested following an incident in Park End Street in the early hours of yesterday morning where a 26-year-old man was assaulted.
No charges have yet been made on any of the men, three of whom are 22 and one of whom is 20.
Det Insp Kev Elkins said: "We have made four arrests and have spoken to a number of witnesses.
"We are still in the early stages of this investigation and we are keen to speak to anyone who has information about this incident."
Anyone with information is asked to contact 08458 505505 or Crimestoppers on 0800 555111.
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