TECOLUCA, El Salvador — Homeland Security Secretary Kristi Noem on Wednesday visited the high-security El Salvador prison where Venezuelans who the Donald Trump administration alleges are members of the Tren de Aragua gang have been held since their removal from the U.S.

Noem’s trip to the prison — where inmates are packed into cells and never allowed outside — comes as the Trump administration seeks to show it is deporting people it describes as the “worst of the worst.”

The Trump administration is arguing in federal court that it was justified in sending the Venezuelans to El Salvador, while human rights activists say officials have sent them to a prison rife with human rights abuses.

At the prison, Noem toured an area holding some of the Venezuelans accused of being gang members. In the sweltering building, the men in white T-shirts and shorts stared silently from their cell without making a sound.

When Noem exited the building, the men could be heard shouting an indiscernible chant. In a post on X Wednesday, Homeland Security indicated it would continue working with El Salvador, saying that Noem was slated to discuss how the U.S. can “increase the number of deportation flights and removals of violent criminals from the U.S.” during her visit with President Nayib Bukele.

Noem has frequently been front and center in efforts to highlight the immigration crackdown. She took part in immigration enforcement operations, rode horses with Border Patrol agents and was the face of a television campaign warning people in the country illegally to self-deport. Noem’s Wednesday visit is part of a three-day trip. She’ll also travel to Colombia and Mexico.

The Venezuelans were removed from the U.S. this month after Trump invoked the Alien Enemies Act of 1798 and said the U.S. was being invaded by the Tren de Aragua gang. The Alien Enemies Act gives the president wartime powers and allows noncitizens to be deported without the opportunity to go before an immigration or federal court judge.

In a setback for the administration, an appeals court Wednesday kept in place an order barring the administration from deporting more Venezuelan immigrants to El Salvador under the Alien Enemies Act.

A central outstanding question about the deportees’ status is when and how they could ever be released from the prison, called the Terrorism Confinement Center, as they are not serving sentences. They no longer appear in U.S. Immigration and Customs Enforcement’s online detainee locator and have not appeared before a judge in El Salvador.

The Trump administration refers to them as the “worst of the worst” but hasn’t identified who was deported or provided evidence that they’re gang members.

Relatives of some of the deportees have categorically denied any gang affiliation. The Venezuelan government and a group called the Families of Immigrants Committee in Venezuela hired a lawyer to help free those held in El Salvador. A lawyer for the firm, which currently represents about 30 Venezuelans, said they aren’t gang members and have no criminal records.