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 from several prisons in Tamaulipas from January 2010 to March 2011 due to corruption. On 15 October 2011, in the border city of Matamoros, Tamaulipas, 20 inmates were killed and 12 were severely wounded in a prison brawl. Some sources reveal that the killings were indeed "planned executions." Earlier on 6 August 2010, 14 inmates were also killed in a riot at the federal prison in Matamoros. Moreover, in 1991, the time when Juan García Ábrego was the supreme leader of the Gulf Cartel, the federal prison in Matamoros experienced the massacre of 18 people. In the nearby border city