Inmates beheaded in Brazil prison riot Thirty inmates have been killed – some beheaded or burned alive – in fighting in a Brazilian prison between rival gangs. More than 100 inmates have died in gang warfare since the start of the year Major prison riots Natal – Jan 14, 2017: 30 inmates killed at Alcaçuz Prison Sao Luis: At least 75 inmates have died at Pedrinhas Prison complex since 2013 Manaus – Jan 2, 2017: 56 prisoners killed at Anisio Jobim Prison Rio de Janeiro – Jun 2004: 30 prisoners and one prison warden killed during three-day riot at Benfica Prison Sao Paulo — Feb 2001: Riots – involving more than 20,000 inmates – leave 19 people dead. Oct 1992: More than 111 inmates killed in Carandiru penitentiary Boa Vista – Jan 6, 2017: 33 killed at Monte Cristo prison Porto Velho – Jan 2002: At least 27 inmates killed at Urso Branco Prison Brasilia VENEZUELA COLOMBIA PERU BOLIVIA URUGUAY PARAGUAY ARGENTINA BRAZIL ATLANTIC OCEAN PACIFIC OCEAN 500 miles 800km Sources: Associated Press, Reuters