At least 57 people have died in a riot in a Brazilian jail.
The clashes involved two rival gangs in the facility in the northern state of Para.
The violence reportedly erupted when members from one prison wing invaded a block controlled by the other group.
Most of the victims are believed to have died from suffocation after gang members set fire to part of the building.
Two guards taken captive were later released.

US peace envoys meet Zelenskyy in Kyiv after Putin talks
US targets three Iranian oil vessels after attack on Navy ships
Israeli strikes kill seven in southern Lebanon
Indonesia's Anak Krakatau eruption halts flights, schools, fishing
Putin says US-Russia contacts beneficial as talks begin with Witkoff and Kushner
Chinese national rescued from Nepal tunnel 10 days after flash flood
US envoys Witkoff, Kushner arrive in Moscow for talks on peace in Ukraine
One dead, 11 people missing after mudslide in China's Jiangxi province
