Police have released a CCTV image of three men they wish to speak to following an attempted robbery on the campus of Bucks New University.

Around 3pm on January 24 this year, a man in his twenties was approached by two individuals at the university's Abbey Way campus in High Wycombe.

They demanded that he hand over his phone. When the man refused, one of the offenders hit him.

The two ran off without taking anything - leaving the victim physically unharmed.

Detective Constable Adrian Speakman, from the South Bucks Priority Crime Team, said: "I am appealing to anybody who recognises these people to please get in touch with us as we believe they may have vital information about this attempted robbery.

"If you are any of the people pictured, please come forward as soon as possible.

"To contact us, call 101 or make a report on our website, quoting reference number 43240036635.

"Alternatively, you can provide information anonymously to independent charity Crimestoppers by calling 0800 555 111 or via its website."