Rescuers taking part in the search of survivors take a break, in Mexico City, on September 20, 2017 one day after a powerful 7.1-magnitude quake devastated part of the country. At least 216 people were killed when a powerful 7.1-magnitude earthquake struck Mexico on Tuesday, including 21 children crushed beneath an elementary school that was reduced to rubble. / AFP PHOTO / RONALDO SCHEMIDT