Britain’s first acid attacker killer launched a copycat jihadist attack on prison staff threatening officers with a sharpened instrument in his cell as officials fear an upsurge in ‘jail extremism’.

Xeneral Imiuru was locked up in 2018 after being convicted for an acid attack….

He had previously assaulted officers at another jail and it has now been revealed that he attempted a jihadist attack at Winchester jail.

The 20-year-old is believed to have faked a suicide attempt in order to lure officers into his cell.

Once they were inside the cell they found Imiruru on the floor. Three officers entered and the inmate lunged at them with a weapon that had been strapped to his arm, before being restrained.

The Times reported that he told officers that he was attempting a jihadist attack, despite the fact he was not in prison for terrorist offences.

The Prison Service confirmed to The Times that the attack had taken place and that it was being investigated.

The incident last Thursday comes after the inmate had been segregated from other inmates because he was assessed as a threat.

Prisoners posing as jail ‘emirs’ in jails across the UK have been forcing some to convert to their Islamic ideology.

Since terrorist Sudesh Amman was released early from his sentence last month, going on to stab two people in Streatham, London, Downing Street has been urged to confront the threat of extremism in jails.

It is believed that Imiuru’s attempt to copy jihadist methods will be a concern to those in the prison service….