1990 Strangeways Prison riot administrative offices on the lower floor and the chapel on the upper floor. Remand prisoners were held in wings G, H, I and K of a separate prison, linked to the main prison through workshops and a kitchen. The Certified Normal Accommodation Figure for Strangeways, the number of prisoners the prison was designed to hold, was 970. The population of the prison had increased in the months before the riot, from 1,417 in January 1990 to a peak of 1,658 on 27 March. On 1 April, the prison contained 1,647 prisoners – about 925 convicted adult prisoners, 500 remand prisoners
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