33 more inmates die in Brazil prison clashes
At least 33 prisoners have died in a prison in the northern Brazilian state of Roraima, authorities said, after 60 deaths reported at other jails in recent days.
The justice secretary said the prisoners died overnight at the Agricultural Penitentiary of Monte Cristo.
Police said officers had been deployed to the prison.
The bloodshed comes days after rebellions in other two prisons left 60 dead in the neighbouring state of Amazonas.
Authorities said gangs are fighting for control of drug routes in the northern part of the country, which borders Colombia, Venezuela, Peru and the Guianas.
In Amazonas, several of the prisoners were decapitated during a rebellion on Sunday and Monday.
Four prisons in Amazonas saw rioting on Sunday and Monday.
One suffered the country's worst prison bloodshed since 1992, with half of the 56 who were killed there being beheaded and several others dismembered.
A total of 184 inmates escaped from Amazonas prisons in the disturbances. By Thursday afternoon, only 65 had been recaptured.
Authorities say that in Amazonas, the local Family of the North gang attacked members of Sao Paulo-based First Command, Brazil's biggest criminal organisation.
In October, a riot at the Agricultural Penitentiary of Monte Cristo left 18 dead.