Prisoner 'Slashes Throats Of Guard And Inmate After Shouting "This Is For Allah"

A prisoner allegedly shouted “this is for Allah” before slashing the throat of a jail guard and an inmate - then went on to attack a second prison officer at another jail two days later.

The suspected Islamic extremist is alleged to have used the same phrase uttered by the London Bridge attackers when they murdered seven people with knives and a van.

It comes after Prime Minister, Theresa May, warned in the aftermath of the London atrocity last month of violent extremists carrying out copycat attacks “often using the crudest means”.

The violent incident left the prison officer and a fellow lag needing hospital treatment after they were both attacked with a blade at HMP Weyland in Norfolk.

Prison bosses are probing how the thug was able to attack a second officer two days later on Sunday after being moved to another jail.

Detectives from Norfolk police are investigating both incidents but so far no arrests have been made.

An official source said the suspect was not serving a sentence for a terror related offence, raising the prospect he had been radicalised in jail.