Inmates' hearts ripped out as 33 die in 'barbaric' Brazil prison killing spree

Thirty-three inmates have died in a prison killing spree led by Brazil's largest gang, with some having their hearts and intestines ripped out, authorities said.

The bloodshed came days after 60 inmates were killed during rioting at two prisons in a neighbouring state, and increases fears that violence could spread, including to the streets of major cities, as gangs vie for influence and territory inside prisons and in slums where trafficking operations are often based.