Post-quake scenes in Mexico

Volunteers and rescuers work on a collapsed building after an earthquake in Mexico City, capital of Mexico, on Sept. 20, 2017. Elements from the civil protection corps, Red Cross, army, police and voluntary civilians worked through the day on Wednesday to remove rubble from collapsed buildings in Mexico City, after the magnitude-7.1 earthquake shook the center of the country on Tuesday. (Xinhua/Alejandro Ayala)