At 4am on Thursday 15th April a 40 year-old Kenyan man detained at Oakington immigration prison near Cambridge died after being refused medical care by G4S staff.
There were day-long protests and a stand-off between detainees and police following the death. More than 180 detainees broke through the gates of one of the detention centre's compounds and occupied a courtyard, preventing police and coroners officials entering the room where the man's body lay. 60 of the "ringleaders" of the protest have now been moved to other detention centres and prisons.