A prisoner has been charged with an attack on a jailed al-Qaeda plotter who planned to commit mass murder in a series of "dirty bombings".
Dhiren Barot plotted mass murder in the UK and US
The unnamed 22-year-old, of Sunderland, is accused of assaulting Dhiren Barot, 35, at HMP Frankland near Durham.
Barot's lawyer has claimed his client, from Kingsbury, north-west London, had boiling oil thrown over him on 6 July.
He is serving life for plotting attacks using exploding gas tanks in limousines and a radioactive dirty bomb.
The unnamed prisoner faces charges of wounding and assault occasioning actual bodily harm.
He will appear before magistrates on 23 October.
Barot is serving life imprisonment at HMP Frankland
Barot spent five days in Newcastle's Royal Victoria Infirmary after the alleged assault, where he was treated for burns to his face and body.
A news blackout was imposed to protect medical staff from possible attack while he was treated at the hospital.
At his trial at Woolwich Crown Court, Barot was described as a determined terrorist who prepared meticulous plans for al-Qaeda figures on a series of attacks in the US and the UK.
His other UK plots included flooding the Tube network in London and he admitted planning to bomb several targets in the US including the New York Stock Exchange, the International Monetary Fund HQ, and the World Bank.
Barot was jailed for life, with a recommendation that he serve a minimum of 40 years, but this was reduced to 30 years following an appeal.
He had been moved to Frankland from Belmarsh jail, in south east London, after fears for his safety.