0257 GMT October 20, 2021
Daniel Foote, a career diplomat named to his post in July, said the "collapsed state" was unable to support the infusion of returning migrants, according to Reuters.
"I will not be associated with the United States' inhumane, counterproductive decision to deport thousands of Haitian refugees and illegal immigrants," Foote said in a letter addressed to Secretary of State Antony Blinken that circulated publicly on Thursday.
Haiti, the poorest nation in the Western Hemisphere, has been hit in recent weeks by a presidential assassination, gang violence and a major earthquake.
The United States has returned more than 1,400 migrants from the camp in Del Rio, Texas to Haiti, including families, and moved over 3,200 people for processing away from the encampment, Department of Homeland Security (DHS) officials said on Thursday. At its peak on Sept. 18 there were some 15,000 people at the camp, around two-thirds of those families, the officials said.
Biden's handling of the situation at the border, where record numbers have been detained this year, has led to growing disillusionment from migration advocates who hoped for an end to deterrent measures brought in by his predecessor Donald Trump.