Demise of Venezuela's Political Dissident in Custody Called 'Vile' by US Representatives.

The United States has condemned the Maduro regime over the passing of a detained opposition figure, calling it a "clear indication of the despicable character" of President Nicolás Maduro's regime.

The political prisoner died in his cell at the El Helicoide facility in Caracas, where he had been held for more than a year, as stated by advocacy organizations and dissident factions.

The officials in Venezuela said that the former governor displayed symptoms of a myocardial infarction and was taken to a medical facility, where he succumbed on the weekend.

Intensifying War of Words Between Washington and Caracas

This latest intervention from the US is part of an intensifying exchange of rhetoric between the American government and President Maduro, who has alleged Washington of attempting his overthrow.

In the last several months, the US has increased its armed forces deployment in the Latin America and has executed a number of deadly strikes on vessels it claims have been used for trafficking illegal substances.

US President Donald Trump has accused Maduro himself of being the head of one of the area's cartels—an accusation the Venezuelan president categorically refutes—and has warned of the use of force "on the ground".

"He had been 'arbitrarily detained' in a 'torture centre'," declared the US foreign policy division.

Background of the Imprisonment

The opposition figure was detained in that year after participating with many opposition figures to challenge the conclusion of that year's election for president.

Venezuela's pro-government national electoral body proclaimed Maduro the winner, notwithstanding counts by rivals showing their nominee had triumphed by a wide margin.

The electoral process were widely dismissed on the international stage as flawed and unfair, and triggered demonstrations around the country.

The former governor, who was in charge of the coastal region, was indicted of "stoking division" and "extremism" for challenging Maduro's electoral win.

Responses from Advocates and the Political Rivals

National rights organization Foro Penal has expressed alarm over declining situations for detained dissidents in the country.

"One more jailed opponent has died in Venezuelan prisons. He had been imprisoned for a year, in isolation," posted Alfredo Romero, the group's head, on a social network.

He added that Díaz had only been permitted one visit from his family during the entire length of his incarceration. He added that 17 political prisoners have died in the nation since that year.

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

María Corina Machado, a well-known opposition leader who was awarded this year's Nobel Peace Prize but who remains in seclusion to evade capture, said that his death was not a one-off event.

"Tragically, it contributes to an alarming and heartbreaking chain of fatalities of political prisoners imprisoned in the wake of the electoral suppression," she wrote.

The Democratic Unitary Platform stated that the former governor "passed away unfairly".

Díaz's own political party, Democratic Action (AD), also honored the politician, stating he had been wrongly imprisoned without fair treatment and had stayed in situations "that should never have violated his basic rights".

Wider Geopolitical Strains

Frictions between the US and Venezuela have become increasingly strained over what Trump has called attempts to curb the movement of narcotics and immigrants into the United States.

• US air strikes on ships in the Caribbean and Pacific have resulted in the deaths of more than 80 persons.
• Trump has accused Maduro of "releasing inmates from his jails and mental institutions" into the US.
• The US has classified two Venezuelan drug cartels as terrorist organisations.

Maduro has conversely accused the US of using its war on drugs as an excuse to remove his administration and get its hands on Venezuela's vast oil reserves.

The US has also positioned a sizable armada—its most substantial deployment in the area in many years—along with many military personnel.

In a parallel action, the Venezuelan army according to reports enlisted more than 5,600 soldiers in one go on Saturday, in response to what army commanders termed US "intimidation".