An inmate has been stabbed in the neck with a makeshift knife at HMP Swaleside on the Isle of Sheppey, Sky News understands.

The prisoner, who is in his 30s and has not been named, reportedly left the category B prison in Kent in an ambulance.

He is said to have been attacked with a handmade knife known as a “shank”.

The stabbing at the category B prison reportedly place at around 7:30pm.

It comes after another inmate was said to have been stabbed multiple times in the head at the prison last Friday.

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The man in his 20s is reportedly still in intensive care.

A weapon amnesty was held in the prison urging inmates to hand in their knives in March.

The prison and the Ministry of Justice have been contacted for comment.