The Venezuelan immigrants whom the Trump administration had sent to a notorious mega prison in El Salvador have been flown from there to Venezuela, according to El Salvador President Nayib Bukele.

El Salvador is repatriating dozens of detained Venezuelans in exchange for US nationals held in Venezuela, the governments of the US and El Salvador announced on Friday.

Some of the Americans in the Venezuelan prison were confined to cement cells, beaten, pepper-sprayed and subjected to what one prisoner called “psychological torture.”