Passing of Venezuelan Political Dissident in Custody Labeled 'Despicable' by US Officials.

The US government has criticized the Venezuelan government over the death of a detained opposition figure, labeling it a "stark reminder of the vile essence" of President Nicolás Maduro's government.

The former governor died in his prison cell at the El Helicoide detention center in Caracas, where he had been detained for in excess of twelve months, as reported by human rights organisations and opposition groups.

The Venezuelan government said that the 56-year-old exhibited signs of a myocardial infarction and was transferred to a medical facility, where he died on the weekend.

Escalating Tensions Between US and Caracas

This latest intervention from the US is part of an growing war of words between the American government and President Maduro, who has accused America of seeking a change in government.

In recent months, the America has boosted its military presence in the region and has conducted a number of fatal operations on boats it says have been used for smuggling narcotics.

US President Donald Trump has alleged Maduro directly of being the chief of one of the country's cartels—an accusation the Venezuelan president categorically refutes—and has warned of military action "by land".

"The detainee had been 'arbitrarily detained' in a 'torture centre'," stated the American diplomatic office for the region.

Background of the Detention

Díaz was detained in that year after being among several opposition figures to contest the conclusion of that year's presidential election.

Venezuela's government-controlled national electoral body declared Maduro the winner, even though counts by rivals showing their candidate had been victorious by a landslide.

The electoral process were largely criticized on the international stage as neither free nor fair, and sparked demonstrations across the nation.

Díaz, who governed the island state, was charged of "promoting hatred" and "terrorism" for challenging Maduro's declaration of success.

Responses from Advocates and the Political Rivals

National advocacy group Foro Penal has raised concerns over declining situations for jailed opponents in the country.

"Yet another detained dissident has passed away in Venezuelan jails. He had been imprisoned for a twelve months, in solitary confinement," wrote Alfredo Romero, the body's director, on a social network.

He said that he had only been allowed one encounter from his child during the whole time of his incarceration. He also mentioned that 17 political prisoners have passed away in the country since 2014.

Dissident factions have also condemned the government over the demise of the former governor.

María Corina Machado, a leading dissident figure who received this period's Nobel Peace Prize but who remains in concealment to escape arrest, commented that Díaz's death was part of a pattern.

"Sadly, it joins an disturbing and heartbreaking chain of deaths of jailed opponents imprisoned in the wake of the electoral suppression," she posted.

The coalition of rivals said that Díaz "passed away unfairly".

His own party, Democratic Action (AD), also honored the politician, noting he had been held without justice without fair treatment and had been kept in situations "that should never have violated his basic rights".

Broader Geopolitical Tensions

Frictions between the United States and Venezuela have become ever more tense over what Trump has called attempts to stop the influx of narcotics and immigrants into the United States.

• US bombings on vessels in the Caribbean and Pacific have resulted in the deaths of dozens of individuals.
• Trump has accused Maduro of "emptying his prisons and psychiatric facilities" into the US.
• The US has designated two Venezuelan narco-groups as extremist entities.

Maduro has conversely accused the US of using its anti-narcotics campaign as an pretext to depose his socialist government and gain control of Venezuela's enormous petroleum resources.

The US has also stationed a significant armada—its biggest presence in the region in decades—along with numerous troops.

In a related move, the Venezuelan army according to reports enlisted over five thousand six hundred troops in one go on the weekend, in reaction to what military leaders termed US "aggression".