BOGOTÁ, Colombia (AP) — A dispute over deportation flights from the United States to Colombia entered its second day on Monday, with the U.S. backing down on a threat to impose steep tariffs on Colombian goods after the South American nation agreed to accept flights of deported migrants from the U.S.

Colombian President Gustavo Petro announced that Colombia was suspending permission for previously authorized U.S. deportation flights to land in Colombia. Ostensibly driving Petro’s action were concerns that Colombian nationals were not being treated with respect during the deportation process because they were being transported by military aircraft.

Colombian President Gustavo Petro agrees to receive undocumented migrants as President Donald Trump steps up deportation efforts. Mr. Petro initially rejected two groups of migrants sent to Colombia because they were not treated with “dignity.