The US special envoy for Haiti has resigned in protest over the deportation of Haitian migrants.
The US decision to send the migrants to a country where armed gangs controlled daily life was inhumane, Daniel Foote said in his resignation letter.
Last weekend, the US started flying out migrants from a Texas border town which has seen an influx, with some 13,000 having gathered under a bridge, waiting in a makeshift camp in temperatures of 37C (99F).
Local officials have struggled to provide them with food and adequate sanitation. Most of those at the camp are Haitians, but there are also Cubans, Peruvians, Venezuelans and Nicaraguans present.