“Panama cannot end up becoming a black hole for deported migrants,” said Juan Pappier, deputy director of Human Rights Watch in the Americas. “Migrants have the right to communicate with their families, to seek lawyers and Panama must guarantee transparency about the situation in which they find themselves.”

Lawyers for migrants from around the world who were deported from the United States and moved to a remote jungle camp in Panama in recent weeks say they have been unable to communicate with their clients since they arrived there.

Officials in Costa Rica and Panama are confiscating migrants' passports and cellphones, denying them access to legal services and moving them between remote outposts as they wrestle with the logistics of a suddenly reversed migration flow.

Panama and Costa Rica are among a number of Latin American nations that have agreed to cooperate with U.S. President Donald Trump as he ramps up his deportation machine and restricts access to asylum in the U.

Panama's security minister said on Tuesday that more than half of the migrants deported from the United States to transit point Panama in recent days had accepted voluntary repatriations to their home countries,