Two men have been arrested in connection with an attack on a prison officer at HMP Whitemoor on 9 January, the Metropolitan police have said.
The men, aged 24 and 26, were arrested on Monday night on suspicion of conspiracy to murder and preparation of a terrorist act under section 5 of the Terrorism Act 2006.
Both men were detained using powers under the Police and Criminal Evidence Act 1984. The men remain in custody at a London police station and enquiries continue, police said.
During the attack in January, two inmates in fake suicide belts, armed with improvised blades, attacked an officer at HMP Whitemoor. A counter-terrorism investigation was launched.
A spokesperson for the Met said in January that “due to the circumstances relating to this incident, it was deemed appropriate for the investigation to be carried out by officers from the Met police counter-terrorism command.”