The American administration has criticized the Maduro regime over the fatality of a detained opposition figure, labeling it a "clear indication of the abhorrent character" of President Nicolás Maduro's rule.
Alfredo DĂaz was found dead in his detention cell at the El Helicoide detention center in Caracas, where he had been held for more than a year, according to advocacy organizations and dissident factions.
The Caracas administration stated that the man in his fifties displayed signs of a cardiac arrest and was taken to a hospital, where he passed away on Saturday.
This latest statement from the US is part of an escalating diplomatic spat between the American government and President Maduro, who has alleged Washington of pursuing a change in government.
In the last several months, the America has boosted its armed forces deployment in the Latin America and has conducted a series of lethal attacks on boats it asserts have been used for smuggling illegal substances.
US President Donald Trump has accused Maduro personally of being the head of one of the country's drug cartels—an allegation the Venezuelan president strongly rejects—and has hinted at the use of force "on the ground".
"He had been 'unjustly imprisoned' in a 'center of abuse'," said the US State Department's Bureau of Western Hemisphere Affairs.
DĂaz was taken into custody in 2024 after participating with many opposition figures to contest the outcome of that year's election for president.
Venezuela's state-run electoral authority proclaimed Maduro the victor, despite counts by rivals showing their nominee had triumphed by a wide margin.
The vote were broadly rejected on the international stage as lacking in credibility, and ignited demonstrations throughout the nation.
The former governor, who led the island state, was indicted of "stoking division" and "terrorism" for questioning Maduro's claim to victory.
National rights organization Foro Penal has voiced worry over worsening circumstances for detained dissidents in the South American state.
"One more jailed opponent has passed away in Venezuelan detention centers. He had been incarcerated for a twelve months, in solitary confinement," wrote Alfredo Romero, the group's director, on a social media platform.
He added that he had only been allowed one meeting from his family during the whole time of his incarceration. He further stated that 17 political prisoners have died in the country since 2014.
Dissident factions have also criticized the government over the demise of DĂaz.
MarĂa Corina Machado, a leading opposition leader who was awarded this period's Nobel Peace Prize but who remains in seclusion to avoid arrest, commented that the governor's death was part of a pattern.
"Tragically, it contributes to an disturbing and heartbreaking chain of deaths of detained dissidents held in the context of the after the vote suppression," she said.
The coalition of rivals stated that the former governor "passed away unfairly".
His own party, Democratic Action (AD), also honored the politician, saying he had been unjustly detained without due process and had remained in circumstances "which violated his human rights".
Tensions between the US and Venezuela have become increasingly strained over what Trump has called efforts to curb the flow of drugs and immigrants into the US.
Maduro has conversely accused the US of using its drug enforcement efforts as an excuse to overthrow his socialist government and access Venezuela's vast oil reserves.
The America has also stationed a large fleet—its biggest deployment in the area in many years—along with thousands of military personnel.
In a parallel development, the Venezuelan army according to reports inducted more than 5,600 recruits in a single event on Saturday, in reaction to what defense officials termed US "aggression".
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