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
Apodaca prison riot Mexico's—and the rest of Latin America's—prison system. The prison riot is believed to have started when members of the Gulf Cartel and Los Zetas clashed in the prison, using sharp-edged knives, stones, burning devices, and possibly firearms to kill rival cartel members. A prison spokesperson denied that firearms were involved. Some of the dead were strangled, thrown out of windows, stabbed, beheaded, hanged, bludgeoned, and crushed. An investigation was immediately launched into whether some of the 17 prison guards on duty colluded in the fight by unlocking the doors between the two wings of the prison. The prison director, the