A surge of migrant arrests at Mexico's southern border

Mexico's National Guard took up their posts along a southern border river with Guatemala on Wednesday, as part of an agreement with the United States to arrest a surge in migrants. According to local media reports on Wednesday, National Guard officers took into custody 20 Bangladeshi migrants and some 100 Central Americans at the border by the Suchiate River.

Officers are checking migrants for visas. Mexico has not traditionally used security forces to stop undocumented foreign citizens heading for the United States. And critics say Mexico is doing too much to placate U.S. President Donald Trump, after an agreement to stave off a tariff threat.