The base had been cleared of migrants since Thursday, after the government sent 177 to Venezuela and one back to the United States.

A group of five Senate Democrats led by Sen. Dick Durbin (D-Ill.) sent a letter to President Trump on Monday challenging his transfer of migrants to detention centers at the U.S. Naval station in Guantánamo Bay,

A U.S. defense official confirmed to VOA that a C-130 military cargo plane carrying migrants left Fort Bliss in Texas and arrived at Guantanamo Bay on Sunday. A second defense official said all 17 migrants were assessed to be “high threat” and are being held at the base’s detention facility.

The Trump administration has said little about the Venezuelan men who were transferred from Texas to the U.S. military base in Cuba.