The organizer of a migrant caravan from Honduras was detained in Guatemala on Tuesday as the U.S. government threatened to withdraw aid from both countries and El Salvador if the flow of migrants north to the United States was not stopped.
Up to 3,000 migrants, according to organizers' estimates, crossed from Honduras into Guatemala on a trek northward after a standoff on Monday with police in riot gear.
The Honduran Foreign Ministry called on its citizens not to join the group. The government "urges the Hondurans taking part in this irregular mobilization not to be used by a movement that is clearly political," it said.