1990 Strangeways Prison riot April, HM Prison Durham, HM Prison Winchester and HM Prison Wandsworth on 4 April, and HM Young Offenders Institute Glen Parva on 6 April. The weekend of 7 April and 8 April saw protests across the prison system. At HM Prison Leeds there was a sit-down protest after the arrival of over 100 prisoners who had been transferred from Strangeways. At HM Prison Dartmoor, between 100 and 120 prisoners wrecked D wing of the prison, and 12 prisoners also protested on the roof of C wing unfurling a banner that read "Strangeways, we are with you". 32 prisoners from Dartmoor
Fremantle Prison riot spread into the rafters, and caused the roof to collapse. The prisoners surrounded their hostages, and in turn were besieged by an armed riot squad inside the prison, and the police riot encircled the prison. Skilled police negotiators communicated with the ring leaders, and by nightfall only five hostages remained. A sixth officer was to have been kept, but was released as he was seriously injured. Meanwhile, the fire brigade had trouble bringing the inferno in the main cell block under control. The prison's gate was too narrow for their trucks to pass, so they had to water the flames