A murder probe is underway after a UK prison inmate was stabbed to death.

Stephen O’Donnell, 33, was attacked at HMP Risley, in Warrington, Cheshire, on Tuesday evening.

Cheshire Police said he was rushed to Warrington General Hospital, where he later died.

O’Donnell’s family is being supported by specialist officers but he has not yet been formally identified.

A 23-year-old man is in police custody after being arrested on suspicion of murder.

Unlocked: an exhibition of drawings by prisoners Show all 11 1 /11 Unlocked: an exhibition of drawings by prisoners Unlocked: an exhibition of drawings by prisoners By Tim Tree Unlocked: an exhibition of drawings by prisoners By Will Unlocked: an exhibition of drawings by prisoners By Will Unlocked: an exhibition of drawings by prisoners By Kyle By Kyle "This piece of work was made in dedication to my family. In hope they see I'm thinking of them always. I love you X. The course/program is great. It's given me a chance to create a piece of work I never dreamed I could achieve, but with help and encouragement from Kieran, Lee and Nish. They've made it possible, thank you for everything!" Unlocked: an exhibition of drawings by prisoners By Ali Unlocked: an exhibition of drawings by prisoners By John By John "I found the art classes very useful. I enjoyed making the T-shirt designs. The class brought a lot of people together. The tutors have been very helpful. I love being a part of the activities. The class takes my mind off of a lot of things and I also like being creative. Thanks" Unlocked: an exhibition of drawings by prisoners By John Unlocked: an exhibition of drawings by prisoners By Jamal By Jamal "I tend to mainly do pencil drawings, Tattoo style. I like to draw to pass time and it gives me a sense of achievement to complete a piece of artwork. I've enjoyed doing the arts project with Soft Touch as it enabled me to meet other artists, grow my confidence and given me an opportunity to carry on doing similar stuff in the community" Unlocked: an exhibition of drawings by prisoners By Jim By Jim "I've learned how to use photoshop. I've also learned how to design T-shirts. Bringing art to the table has helped me to broaden my horizons through design and communication. I'm looking to meet up with funding organisation to help me build clothing line. I also want to do this for charities, for mental health, the homeless, Grenfell Tower, It's made me hopeful about change, to become more positive, to put back into the community." Unlocked: an exhibition of drawings by prisoners By Jim Unlocked: an exhibition of drawings by prisoners By Linton By Linton. "Coming up with this design, I was drawn to put out a positive message init. Hopefully it will make the reader think. Written in the King James Bible, the words still have a pirpose today. And will give the reader hope and belief in the most high Jah. Taking part in the Soft Touch project has helped me de-stress my mind, albeit one day a week it still helped. Words for: Psalms 68:4, King James Bible version."

Officers were called to reports of an assault at the prison at about 7.41pm, police said.

A Prison Service spokesperson told The Independent: “HMP Risley prisoner Stephen O’Donnell was pronounced dead following an incident on Tuesday evening.

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“Our condolences are with the friends and family of Mr O’Donnell and it would inappropriate to comment further while there is an ongoing police investigation.”

The male category C training and resettlement prison holds men who are serving short sentences or coming to the end of longer terms.

Risley Prison first opened as both a male and female remand centre in 1964, according to the Ministry of Justice official website.

In 1990 it changed to the male category C training prison it is today.