Migrants have previously been held in a lower-security part of the base. Tents are also being constructed near the detention facility.

Around 150 tents to house migrant detainees and to support detention operations have been set up at the U.S. Navy base at Guantánamo Bay, according to satellite images taken over the area on Tuesday and Wednesday. President Trump has ordered his administration to prepare to house as many as 30,000 migrants at the base.

The facility has been used to hold detainees accused of terrorism since 2002. The majority of immigrants sent to Guantanamo are expected to be held in tent camps.