A second migrant caravan, believed to be armed with bombs and guns, crossed into Mexico on Monday despite a huge police presence.
Hundreds of migrants following in the footsteps of the first caravan heading to the U.S. border crossed a river from Guatemala.
A low-flying police helicopter hovered overhead as the migrants waded in large groups through the Suchiate River’s murky waters, apparently trying to use the downdraft from its rotors to discourage them.
