Pemex Probing Lethal Blast Amid Drive to Boost Security

Keywords

A Petroleos Mexicanos worker looks at debris at the Petroleos... News PhotoAdministrator,Emergencies and Disasters,Exploding,Finance,Fuel and Power Generation,Looking,Mexico,Mexico City,North America,Occupation,Petrol,Petroleos Mexicanos,Security,The Americas,The Media,USA,VerticalPhotographer Collection: Bloomberg 2013 BloombergA Petroleos Mexicanos (Pemex) worker looks at debris at the Petroleos Mexicanos (Pemex) administrative building in Mexico City, Mexico, on Sunday, Feb. 3, 2013. The search for the cause of a blast that destroyed three floors of a building at Pemex' headquarters and killed at least 34 people entered a fourth day, as investigators toiled ahead of a self-imposed deadline for finding an answer. Photographer: Susana Gonzalez/Bloomberg via Getty Images