Passing of Venezuela's Political Dissident in Custody Labeled 'Vile' by US Authorities.

The American administration has condemned the Venezuelan government over the death of a jailed opposition figure, calling it a "stark reminder of the despicable essence" of President Nicolás Maduro's government.

Alfredo Díaz was found dead in his detention cell at the El Helicoide prison in Caracas, where he had been held for more than a year, according to advocacy organizations and political opponents.

The Caracas administration stated that the former governor exhibited symptoms of a cardiac arrest and was rushed to a hospital, where he died on the weekend.

Intensifying Tensions Between US and Caracas

This new statement from the United States is part of an intensifying war of words between the White House and President Maduro, who has accused Washington of seeking a change in government.

In the past few months, the America has boosted its armed forces deployment in the Latin America and has carried out a number of fatal strikes on boats it claims have been used for trafficking narcotics.

US President Donald Trump has accused Maduro himself of being the leader of one of the region's cartels—an accusation the Venezuelan president vehemently denies—and has threatened the use of force "by land".

"The detainee had been 'held without cause' in a 'center of abuse'," said the US foreign policy division.

Background of the Arrest

The opposition figure was detained in that year after joining several political opponents to dispute the conclusion of that period's national vote.

Venezuela's pro-government electoral authority declared Maduro the winner, despite opposition tallies indicating their contender had triumphed by a landslide.

The vote were broadly rejected on the international stage as lacking in credibility, and triggered demonstrations around the nation.

The former governor, who was in charge of the island state, was accused of "stoking division" and "terrorist acts" for disputing Maduro's claim to victory.

Responses from Rights Groups and the Political Rivals

Venezuelan advocacy group Foro Penal has expressed alarm over declining conditions for jailed opponents in the Latin American nation.

"Another jailed opponent has died in Venezuelan jails. He had been imprisoned for a twelve months, in isolation," wrote Alfredo Romero, the group's head, on a social network.

He said that Díaz had only been permitted one visit from his family during the entire length of his incarceration. He also mentioned that over a dozen detained dissidents have died in the country since that year.

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

María Corina Machado, a leading political rival who received this year's Nobel Peace Prize but who stays in hiding to escape detention, commented that the governor's demise was not an isolated incident.

"Unfortunately, it joins an concerning and difficult sequence of demises of political prisoners detained in the aftermath of the after the vote suppression," she posted.

The opposition alliance declared that the former governor "was an unjust death".

Díaz's own party, Democratic Action (AD), also paid tribute to the former governor, noting he had been unjustly detained without due process and had been kept in conditions "that should never have violated his basic rights".

Wider International Strains

Strains between the US and Venezuela have become ever more tense over what Trump has called attempts to curb the movement of narcotics and migrants into the United States.

• US air strikes on boats in the Caribbean and Pacific have claimed the lives of over eighty individuals.
• Trump has alleged Maduro of "clearing out his jails and psychiatric facilities" into the US.
• The US has designated two Venezuelan narco-groups as extremist entities.

Maduro has conversely alleged the US of using its war on drugs as an excuse to depose his regime and get its hands on Venezuela's huge crude oil deposits.

The US has also stationed a large fleet—its biggest movement in the area in many years—along with thousands of soldiers.

In a parallel move, the Venezuelan army according to reports swore in thousands of recruits in one go on Saturday, in reaction to what military leaders termed US "aggression".