The lawyers of 252 Venezuelans were deported by the Trump administration and imprisoned in El Salvador for two months, claiming that immigration was the victim of physical and emotional "torture."

A law firm hired by the Venezuelan government said it could not access immigrants in the super prison, where they were locked up.

Lawyers are seeking "proof of life" but say they are already sitting on the wall of silence of President Nayib Bukele's administration and the judicial system of Central American countries.

Grupo Ortega filed a habeas petition to the Supreme Court on March 24 in an attempt to end the so-called "illegal detention" of Venezuelans, but is still awaiting a ruling.

"They treat them like ordinary criminals," said lawyer Salvador Ríos.

"This is torture," Rios said in an interview with AFP.

Attorneys wrote in early May a letter to Bukele, a key ally of Donald Trump, asking for authorized access to the Venezuelans, but have not been successful so far.

AFP sought comment from the President of El Salvador on the case and the efforts of lawyers, but has not received a response.

El Salvador vice president Félix Ulloa told French media that his government only provides “services that we can call prison accommodation.”

The Trump administration has paid millions of dollars to the Buckley administration for locking out immigrants, saying they are criminals and gang members.

Trump in March cited little use of wartime legislation to send immigrants to El Salvador without any court hearings, accusing them of belonging to the Tren de Alagua gang, an allegation their families and attorneys denied.

Venezuelans, along with 36 deported El Salvadorian immigrants, were detained in the highest security prison built in Buckley to accommodate thousands of suspects arrested during his overhaul of street gangs.

Rios said images of Venezuelans entering the CECOT large prison illustrate the cruelty.

"The damage is not only physical, but psychological," Rios said.

In a letter to Buckler, the attorney seeks permission to interview the prisoner in person or in fact in person, which can be used as a "proof of life."

They asked Bucker to release a list of 252 Venezuelans, something Washington did not do.

An El Salvador immigrant who was initially imprisoned in Cecot but in April was Kilmar Abrego García, a U.S. resident who was deported because the United States itself admitted administrative errors.

The Venezuelan identified as "Christian" in U.S. court documents were also wrongly fired.

In either case, U.S. judges failed to successfully order the Trump administration to promote their return to the United States.

Volker Türk, the head of human rights at the United Nations, said this week that the situation “has serious concern for a wide range of rights that are crucial to us and international law.”

"Families we have said have expressed a sense of total powerlessness in the face of what happened and the pain of seeing relatives being marked and processed as violent criminals, even terrorists, without any court decision on the validity they claim," he said in a statement.

Another lawyer at Grupo Ortega, Isael Guerrero, described it as "completely illegal" because the Venezuelans "have not been legally prosecuted in any court in El Salvador."

The company's head, Jaime Ortega, said they are "100% immigrants".

“No one of them was prosecuted,” he said.

Ortega said the fate of the Venezuelans is now entirely dependent on Buckler because “the expulsion is completely invalid for U.S. jurisdiction.”

In April, Buckley proposed to trade 252 Venezuelans in exchange for the equivalent number of political prisoners held by President Nicholas Maduro's administration.