Death of Venezuela's Political Dissident in Custody Called 'Vile' by United States Representatives.

The US government has lashed out at the Venezuelan government over the passing of a detained opposition figure, calling it a "clear indication of the abhorrent essence" of President Nicolás Maduro's government.

Alfredo Díaz was found dead in his prison cell at the El Helicoide facility in Caracas, where he had been held for over a year, according to human rights organisations and political opponents.

The Caracas administration said that the man in his fifties exhibited signs of a myocardial infarction and was transferred to a hospital, where he succumbed on the weekend.

Intensifying Tensions Between Washington and Venezuela

This recent intervention from the US is part of an escalating exchange of rhetoric between the American government and President Maduro, who has accused America of attempting regime change.

In the past few months, the United States has expanded its armed forces deployment in the Latin America and has executed a number of deadly attacks on vessels it asserts have been used for moving illegal substances.

US President Donald Trump has alleged Maduro personally of being the chief of one of the region's narco-trafficking organizations—an accusation the Venezuelan president strongly rejects—and has hinted at military action "on the ground".

"He had been 'held without cause' in a 'facility for mistreatment'," said the American diplomatic office for the region.

Background of the Arrest

Díaz was detained in that year after being among numerous political opponents to contest the results of that period's election for president.

Venezuela's pro-government election council announced Maduro the winner, notwithstanding figures from dissidents suggesting their nominee had been victorious by a overwhelming majority.

The electoral process were broadly rejected on the world stage as lacking in credibility, and sparked protests throughout the country.

Díaz, who governed the Nueva Esparta state, was indicted of "incitement to hatred" and "extremism" for questioning Maduro's claim to victory.

Reactions from Rights Groups and the Opposition

Local advocacy group Foro Penal has voiced worry over worsening conditions for political prisoners in the South American state.

"Another political prisoner has passed away in Venezuelan jails. He had been imprisoned for a twelve months, in solitary confinement," wrote Alfredo Romero, the group's president, on a social network.

He added that Díaz had only been allowed one encounter from his family during the whole time of his incarceration. He further stated that over a dozen detained dissidents have died in the country since that year.

Dissident factions have also criticized the administration over the passing of the former governor.

María Corina Machado, a leading opposition leader who was awarded this year's Nobel Peace Prize but who stays in hiding to escape arrest, said that the governor's death was not a one-off event.

"Unfortunately, it joins an disturbing and painful chain of demises of detained dissidents imprisoned in the context of the electoral crackdown," she posted.

The coalition of rivals declared that Díaz "died unjustly".

Díaz's own political party, Democratic Action (AD), also paid tribute to the ex-leader, saying he had been wrongly imprisoned without fair treatment and had remained in circumstances "that should never have violated his fundamental rights".

Wider International Strains

Strains between the US and Venezuela have become increasingly strained over what Trump has labeled actions to curb the flow of narcotics and migrants into the United States.

• US air strikes on boats in the regional waters have resulted in the deaths of more than 80 individuals.
• Trump has alleged Maduro of "releasing inmates from his jails and insane asylums" into the US.
• The US has classified two Venezuelan trafficking organizations as extremist entities.

Maduro has for his part alleged the US of using its war on drugs as an excuse to remove his regime and gain control of Venezuela's enormous crude oil deposits.

The US has also stationed a large armada—its biggest movement in the area in decades—along with thousands of military personnel.

In a parallel development, the Venezuelan military according to reports swore in more than 5,600 soldiers in one go on Saturday, in response to what military leaders termed US "aggression".