Heavily armed police officers walk outside the Agricultural Penitentiary of Monte Cristo, after dozens of inmates were killed, in Boa Vista, Roraima state, Brazil, Friday, Jan. 6, 2017. (Rodrigo Sales/AP)

Thirty-three inmates were slain Friday in northern Brazil, some with their hearts and intestines ripped out, during a prison killing rampage led by the country’s largest gang, authorities said.

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

The incidents also are becoming a flash point for the government of President Michel Temer, whose administration is struggling with an economic crisis and mounting corruption allegations. Authorities in Roraima state, on the border with Venezuela, said that they requested help from Brazil’s federal government more than once to deal with its prison crisis but that no support was sent.

“This is a national crisis,” said Uziel Castro, security secretary of Roraima, where the latest massacre happened.

Castro said the violence began Friday at about 2:30 a.m. at the Agricultural Penitentiary of Monte Cristo in the town of Boa Vista. He said it was led by members of the Sao Paulo-based First Command, Brazil’s largest criminal organization.

(Reuters)

He said First Command members did not attack those of a rival gang but rather targeted prisoners, although the motives remained unclear.

“There was no confrontation — this was a killing spree,” Castro said. “It was barbaric. Some were beheaded; others had their hearts or intestines ripped out.”

Castro said that firearms were not involved and that none of the 1,500 inmates in the prison built for about 700 had escaped.

It was not immediately clear whether there was a connection to the gruesome rioting earlier this week in the neighboring state of Amazonas, which officials blamed on a gang war between the First Command and Family of the North. The two gangs fight over control of prisons and drug routes in northern Brazil along the borders of Bolivia, Colombia, Venezuela, Peru and the Guiana region.

A police statement said officers, including a heavily armed military-like riot squad, had been deployed to the prison.

Just as details about the latest disturbance were emerging, Justice Minister Alexandre de Moraes announced measures aimed at curbing the violence.

Moraes said that federal police would be more integrated in state capitals and that special task forces would be created to more quickly process criminal charges, a measure aimed at reducing overcrowding. He offered no deadlines for the initiatives but said they would “be realistic” given the recession in Latin America’s largest economy.

“The situation isn’t out of control,” said Moraes. “It’s [just] another difficult situation.”

The rioting Sunday and Monday in Amazonas included the country’s worst prison massacre since 1992, with half of the 56 slain at one institution beheaded and several others also dismembered. In another of the riots in the state, four prisoners died.

A total of 184 inmates escaped from Amazonas prisons during the disturbances. As of Thursday afternoon, only 65 had been recaptured.

“The federal government needs to prepare for a worst-case scenario, and that means accelerating measures to keep the situation from getting worse,” said Col. Jose Vicente, a former national security adviser and risk consultant.

In October, a riot at the Agricultural Penitentiary of Monte Cristo left 10 dead. Authorities said that clash involved the First Command and the Red Command, which has its base in Rio de Janeiro. On the same day, eight others were killed in a prison in Rondonia state, which borders Bolivia.

After that clash, Roraima’s Castro asked the federal government for help with the prison, according to a letter obtained by the Associated Press.

Castro requested that the national guard be sent in to help because the moving of prisoners deemed to have been leaders of the rebellion had led to threats of retaliation.

Asked about the request Friday, Moraes, the justice minister, said that Roraima had requested policemen to help in patrolling Venezuelans that were entering Brazilian territory — although that is not what the letter stated. He acknowledged that no help had been sent.

Moraes canceled his trip to Roraima after Castro said that the state had repeatedly asked the federal government for help and that this was always denied. Brazil’s Justice Ministry did not offer an explanation for the decision.

“Criminals are trying to kill each other. What we need is the federal government’s help,” said Castro. “This is all over Brazil.”