A caravan consisting of around 3,000 migrants that recently began traveling north from Honduras in hopes of reaching the United States was stopped at the Mexico-Guatemala border late Thursday morning.

The Associated Press reported that the caravan stopped about two blocks from a border crossing there before turning around to talk among themselves. Guatemala closed its border gate behind the migrants, and armed Mexican troops were on standby at the border post.

Mexico's ambassador to Guatemala, Luis Manuel López Moreno, said Mexico will enforce a "metered entry" policy, which likely means they allow the migrants to enter in small groups and continue north.

FOX News reports that the migrants will be screened at U.N. stations in order to determine how many have legitimate claims for refugee status.

BBC reports that Trump threatened to cut aid to Honduras if leaders did not reign the migrants in.

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