The main entrance of the Artz Pedregal shopping mall, located in southern Mexico City, collapsed on Thursday, July 12.According to El Universal, no one was injured in the accident. Mexico City Mayor Jose Ramon Amieva told local press structural problems were noticed about three hours before the collapse in that particular section of the building, which was then cordoned off, Excelsior reported.An investigation into the incident is ongoing. The Artz Pedregal mall opened in March of this year.This footage shows the aftermath of the incident. Credit: Dennis A. Garcia via Storyful