1990 Strangeways Prison riot April, and 40 prisoners held a prison officer hostage for twenty-four hours after taking over a hall at HM Prison Shotts on 10 April. On 12 April, two teenage remand prisoners at HM Prison Swansea barricaded themselves into their cell for seventeen hours, and on 22 April between 80 and 100 remand prisoners staged an eighteen-hour rooftop protest at HM Prison Ashfield in Pucklechurch. On 2 April newspapers reported a weekend of "anti-authority violence", as in addition to the Strangeways riot the Poll Tax Riot had occurred in London on 31 March. Reports of the violence at Strangeways included kangaroo
Apodaca prison riot left 8 prisoners dead, and on 15 November 2010 a group of gunmen threw a grenade inside the prison. In Tijuana, Baja California on 18 September 2008, a total of 19 inmates were killed in a brawl between rival drug cartel members. In Mazatlán, Sinaloa on 14 June 2010, a group of gunmen entered a prison, killed the guard, and then entered a cell and massacred 29 people. 73 inmates were killed in the prison in Apodaca between the start of the Mexican Drug War in December 2006 to February 2012. Apodaca prison riot The Apodaca prison riot occurred on