Firefighters and workers dig for survivors after an explosion next to the executive tower in the headquarters complex of Pemex, Mexico’s state-owned oil company,in Mexico City. (Guillermo Gutierrez / Associated Press)
Rescue workers gather as emergency responders search for survivors at the site of an explosion at the Pemex complex in Mexico City. (Eduardo Verdugo / Associated Press)
Rescue workers head for the skyscraper that houses the headquarters of state-owned Mexican oil giant Pemex in Mexico City after an explosion. (Yuri Cortez / AFPGetty Images)
An injured person is taken to an ambulance after an explosion at Pemex complex in Mexico City. (Eduardo Verdugo / Associated Press)
Police officers block off the premises of the skyscraper that houses the headquarters of state-owned Mexican oil giant Pemex in Mexico City after a an explosion. (Yuri Cortez / AFP/Getty Images)
