At least 30 inmates killed in latest Brazil prison riot

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At least 30 inmates have been killed in a prison riot in northeastern Brazil, a person familiar with the situation told Fox News.

The person, who requested anonymity because forensic work is under way, said the number of casualties could rise slightly. About a dozen other inmates have been taken to nearby hospitals, the person said.

The riot was the latest in a string of prison disturbances across Brazil that have killed more than 100 people within the past two weeks.

State security officials said fighting between rival gangs broke out Saturday at the adjacent Alcacuz and Rogerio Coutinho lockups near the city of Natal in the Rio Grande do Norte state.

Officials waited until dawn Sunday before entering to try to re-impose control, said state security chief Caio Cesar Bezerra.

"This way we guaranteed a calm intervention, a pacific intervention without resistance from the inmates," Bezerra said.

President Michel Temer expressed concern over the rebellion Sunday through his official Twitter page, saying he had been following the situation closely.

Like many prisons across the country, Alcacuz is overcrowded, with more than 1,000 inmates crammed into a facility meant for 620.

The recent outbreak of prison violence began on Jan. 1-2, when 56 inmates were killed in the northern state of Amazonas. Authorities said the Family of the North gang targeted members of Brazil's most powerful criminal gang, First Command, in a clash over control of drug-trafficking routes in northern states. Many of the dead were beheaded and dismembered. Four others died at a smaller prison.

Then on Jan. 6, in the neighboring state of Roraima, 33 prisoners were killed, many with their hearts and intestines ripped out.

Experts say First Command is exploiting overcrowding and squalid conditions in the penitentiaries to expand its reach across the national prison system.

Meanwhile, the prison chief for the southern state of Parana, Luiz Alberto Cartaxo, told Brazil's Globonews network that 21 inmates escaped from the Piraquara prison there on Sunday after using explosives to break through the prison wall. He said two other inmates died in a confrontation with police while trying to flee.

The Associated Press contributed to this report.