Central American migrants travelling in the "Migrant Via Crucis" caravan sleep outside "El Chaparral" port of entry to US while waiting to be received by US authorities, in Tijuana, Baja California State, Mexico on April 30, 2018. - According to the U.S. Customs and Border Protection on Sunday, none of the migrants from the caravan was processed for asylum because the agency had reached capacity for the day for migrants seeking asylum. At least 150 Central American migrants reached the border between Mexico and the United States on Sunday, determined to seek asylum from the US. The group arrived in the Mexican border town of Tijuana, part of a caravan of more than 1,000 people who set out from Mexico's southern border on March 25. (Photo by GUILLERMO ARIAS / AFP)        (Photo credit should read GUILLERMO ARIAS/AFP/Getty Images)