Rescue workers gather at the site of a train accident after an elevated metro line collapsed in Mexico City on May 4, 2021. (Photo by PEDRO PARDO / AFP)
2021, 4, A, ACCIDENT, AFTER, AN, AT, BY, CITY, COLLAPSED, ELEVATED, GATHER, HORIZONTAL, IN, LINE, MAY, METRO, MEXICO, OF, ON, PARDO, PEDRO, RESCUE, SITE, THE, TRAIN, WORKERS,