Human rights groups warn that El Salvador's prisons are marked by overcrowding, lack of access to basic services and repeated rights violations — but that the situation is even worse for women, who are already vulnerable sector of the population.

Homeland Security Secretary Kristi Noem visited a notorious prison in El Salvador that is holding hundreds of alleged criminal illegal aliens deported from the U.S. this month.

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