Central American migrants seek asylum

A member of the Central American migrant caravan, holding a child, looks through the border wall toward a group of people gathered on the U.S. side, as he stands on the beach where the border wall ends in the ocean in Tijuana, Mexico, on April 29, 2018.

A Central American child who is traveling with a caravan of migrants peers from a bus carrying the group to the border wall for a gathering of migrants living on both sides of the border in Tijuana, Mexico, on April 29, 2018. The sign reads in Spanish: “We’re all brother countries from the Americas. Free transit. Stop the deportations.�

Pro-migrant caravan demonstrators stage a rally in on April 29, 2018, at the US-Mexico Border in San Ysidro, Calif. The U.S. has threatened to arrest Central American migrants if they try to sneak in from the U.S.-Mexico border where they have gathered, prompting President Donald Trump to order troop reinforcements on the frontier.

Pro-migrant caravan demonstrators rally at the west end of the U.S.-Mexico border as pro-migrant demonstrators climb the border wall from the Mexican side of the wall on April 29, 2018 in San Diego, Calif.

Pro-migrant caravan demonstrators rally on the Mexican side of the border wall on April 29, 2018, neaar San Diego, Calif.

People climb a section of border fence to look toward supporters in the U.S. as members of a caravan of Central American asylum seekers arrive to a rally on April 29, 2018 in Tijuana, Mexico.

Carlos Antonio Aguilera, an asylum seeker from Honduras, runs toward the border fence on the beach as a caravan of Central American asylum seekers arrive to a rally on April 29, 2018 in Tijuana, Mexico.

People hold Honduran flags at the border fence during a rally with members of a caravan of Central American asylum seekers and supporters on April 29, 2018, in Tijuana, Mexico.

People post welcome signs on the border fence at a rally with members of a caravan of Central American asylum seekers and supporters on April 29, 2018, in Tijuana, Mexico.

A Central American migrant boy traveling with a caravan of asylum seekers removes sand from his shoes during a demonstration at the U.S.-Mexico Border at Tijuana’s beaches on April 29, 2018.