On May 3rd, a subway crash due to the collapse of an elevated railway occurred near Olivos Station on a section of the Metro Line 12 in southeastern Mexico City. This disaster killed at least 26 people, including children, and 79 people were hospitalized. While the subway was passing on an elevated part, near Mexico City Metro Line 12, a supporting pillar broke away. However, some people have raised their concerns that this incident was foreseen as a man-made disaster. In 2014, in the second year of the completion, some sections of the railway, including the collapsed section, had to be repaired for its insufficient foundations. Also, in 2017, a huge earthquake hit Mexico City; it made cracks in the now collapsed railway. Since then, people have continuously found signs of structural insecurity. According to the media in Mexico, four residents living near the subway said they had seen shakes when the subway passes the elevated railway. Moreover, the subway labor union is going to stop working to report the danger of Mexico City’s subway. The prosecution of Mexico City started an investigation, and Mayor Claudia Sheinbaum has hired an international company to conduct an external technical investigation.