Families of Venezuelan deportees held in El Salvador’s infamous Cecot prison can petition the Salvadoran government for their release – but the fruitfulness of that process is an open question in a country accused of arbitrary detention by rights groups and even the US State Department.

Over the weekend, the Trump administration deported hundreds of Venezuelan migrants to El Salvador, where they are being held in a maximum security mega-prison called the Center for the Confinement of Terrorism (CECOT).

By Nelson Renteria, Brendan O'Boyle and Raul Cortes SAN SALVADOR (Reuters) -The U.S. has sent hundreds of mostly Venezuelan migrants to El Salvador to be held without trial in a controversial mega-prison known for its harsh conditions.