The American administration has criticized the Maduro regime over the passing of a jailed political dissident, describing it as a "stark reminder of the vile character" of President Nicolás Maduro's regime.
Alfredo Díaz passed away in his cell at the El Helicoide facility in Caracas, where he had been held for more than a year, as reported by advocacy organizations and dissident factions.
The Caracas administration said that the 56-year-old showed indicators of a cardiac arrest and was taken to a medical facility, where he succumbed on the weekend.
This new statement from the United States is part of an growing diplomatic spat between the Trump administration and President Maduro, who has claimed America of pursuing regime change.
In the past few months, the America has boosted its military presence in the Latin America and has executed a number of fatal strikes on vessels it claims have been used for smuggling narcotics.
US President Donald Trump has alleged Maduro directly of being the chief of one of the country's drug cartels—an claim the Venezuelan president categorically refutes—and has hinted at the use of force "via a land invasion".
"The detainee had been 'arbitrarily detained' in a 'torture centre'," said the American diplomatic office for the region.
The opposition figure was arrested in that year after participating with numerous dissidents to dispute the results of that year's election for president.
Venezuela's pro-government election council proclaimed Maduro the winner, even though counts by rivals showing their nominee had triumphed by a wide margin.
The elections were broadly rejected on the global scene as flawed and unfair, and sparked protests across the nation.
The former governor, who governed the island state, was accused of "stoking division" and "terrorist acts" for disputing Maduro's claim to victory.
Venezuelan human rights group Foro Penal has voiced worry over declining situations for detained dissidents in the Latin American nation.
"Yet another detained dissident has passed away in Venezuelan detention centers. He had been held for a year, in isolation," stated Alfredo Romero, the body's president, on a social media platform.
He noted that Díaz had only been permitted one encounter from his family during the whole time of his detention. He also mentioned that seventeen detained dissidents have passed away in the nation since that year.
Dissident factions have also condemned the administration over the death of the former governor.
María Corina Machado, a well-known political rival who was awarded this period's Nobel Peace Prize but who is in hiding to avoid detention, stated that his demise was not an isolated incident.
"Tragically, it joins an alarming and painful chain of deaths of jailed opponents detained in the wake of the after the vote repression," she posted.
The coalition of rivals stated that Díaz "was an unjust death".
His own political party, Democratic Action (AD), also honored the politician, noting he had been unjustly detained without proper legal procedure and had remained in conditions "that infringed upon his basic rights".
Tensions between the US and Venezuela have become progressively worse over what Trump has labeled efforts to curb the movement of narcotics and immigrants into the US.
Maduro has in turn alleged the US of using its war on drugs as an justification to remove his administration and get its hands on Venezuela's huge petroleum resources.
The America has also deployed a large armada—its largest presence in the area in many years—along with thousands of troops.
In a related development, the Venezuelan army allegedly enlisted more than 5,600 recruits in one go on the weekend, in answer to what army commanders termed US "threats".