0754 GMT October 23, 2019
The incident at the police station jail in the town of Acarigua, in Portuguesa State, occurred when police special forces (FAES) tried to stop a "massive prison break" which resulted in the deaths of 29 inmates, according to Portuguesa public security secretary Oscar Valero.
The prisoners received the officers with "a hail of gunfire" while detonating three grenades, which injured 19 police, Valero told reporters, Press TV wrote.
The Una Ventana a la Libertad NGO, which defends prisoner rights, gave a preliminary toll of 25 dead.
NGO director Carlos Nieto said the clashes broke out when the FAES attempted to rescue visitors who had been taken hostage on Thursday by the "pran" – the leader of the inmates – at the jail.
"This morning (authorities) sent the FAES and there was a clash. The detainees had weapons, they shot at the police. Apparently they also detonated two grenades," Nieto told AFP.
The inmates' leader, Wilfredo Ramos, was one of those killed, according to an internal police report.
The report, quoted by the NGO, said several officers were wounded by "shrapnel and explosives."
The prisons ministry did not comment on the incident, saying police station jails are not under its control.
A video shared on social media shows an inmate – believed to be Ramos – with his face partly covered while brandishing a pistol and what appears to be grenades, and threatening two women.
"It's our lives (on the line) and those of the visitors here," he says, as a woman pleads for help, while warning the police to stay out because "I'm prepared to die."
Nieto said the inmates were demanding "food and to be transferred to prisons," and had denounced police "abuses."
No information was given about the fate of the hostages.
Violence is a problem in such detention facilities, where inmates are supposed to be held for a maximum of 48 hours, Una Ventana a la Libertad said.
There are around 500 of them in the country, holding 55,000 people even though their total capacity is just 8,000, the NGO added.
The Acarigua jail has capacity for 60 inmates but was holding 500, according to the police report.
These provisional detention centers "are not suitable to hold inmates for more than 48 hours," said Nieto.