Three migrants sent to Guantánamo said they were denied calls to loved ones, subjected to humiliating strip searches and left in isolation for prolonged periods.

Kevin Rodríguez, now back in Venezuela, said the uncertainty of not knowing how long he would be in the U.S. military facility was what worried him the most.

Flights that left from Guantánamo Bay, Cuba, Thursday transported nearly 200 illegal immigrants detained on the island back to Venezuela.

US and Venezuelan officials confirmed that 177 Venezuelans boarded an aircraft from the Venezuelan-owned airline Conviasa bound for Caracas.

Many of the migrants were being kept in a detention facility that has historically held suspected terrorists. They were flown back to Venezuela Thursday after a stop in Honduras.

The Trump administration has sent three illegal immigrants back to Venezuela after a judge blocked their transfer to the migrant detention center at Guantánamo Bay.

The nearly 200 migrants detained at Guantanamo Bay have been cleared out of the military base, with all but one person flown back to Venezuela following successful negotiations with the South American nation’s leader, according to news reports.