Two guards have reportedly been suspended at HMP Wandsworth following the escape of terror suspect Daniel Khalife.
It comes as police investigate whether accomplices had helped Khalife avoid detection in London during a four-day manhunt.
The 21-year-old suspected spy had changed into plain clothes and trainers, and acquired a sleeping bag, food and a bicycle before he was dramatically arrested on a canal towpath on Saturday.
The Wandsworth staff who have been stood down had been responsible for overseeing security of the food delivery van Khalife allegedly hid under to leave the prison grounds last Wednesday, according to The Times.
Meanwhile, a stabbing at the jail has further intensified the spotlight on Wandsworth on a day it was revealed Chancellor Jeremy Hunt had previously raised the alarm over “extremely worrying” conditions and staff problems at the south-west London facility.
Police were called at around 3pm on Sunday to reports that an inmate had been assaulted inside the prison.
Officers and the London Ambulance Service attended and a 24-year-old was taken to hospital to be treated for a stab wound.
The Metropolitan Police confirmed his condition was not life-threatening and no arrests had been made.
Khalife was arrested in west London on Saturday morning after being pulled off a push bike by a plain-clothes counter-terrorism officer.
Khalife had been on remand at HMP Wandsworth after being charged with terror offences in January.
He was charged with escaping from custody at HMP Wandsworth and will appear at Westminster Magistrates’ Court on Monday.
On Sunday, the Justice Secretary said around 40 inmates of HMP Wandsworth have been moved out of the Category B jail.
Alex Chalk told Sky’s Sunday Morning With Trevor Phillips programme that a preliminary investigation into London’s Victorian prison had found that the relevant procedures and security staff were in place.
But he said dozens of individuals on remand have been moved to different sites “out of an abundance of caution”.
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