HOUSTON (AP) — The U.S. government says a 16-year-old Guatemalan died Monday at a Border Patrol station in South Texas, the fifth death of a migrant child apprehended by border agents since December. U.S. Customs and Border Protection said in a statement that Border Patrol apprehended the teenager in South Texas' Rio Grande Valley on May 13. The agency says the teenager was found unresponsive Monday morning during a welfare check at the agency's Weslaco, Texas, station. The teenager's cause of death is unknown.