Mexico Says Pemex Gas Buildup Caused Deadliest Blast Since 2006


Petroleos Mexicano workers walk to the explosion site at the... News PhotoBuilt Structure,Business,Emergencies and Disasters,Exploding,Finance,Fuel and Power Generation,Gasoline,Headquarters,Horizontal,Mexico,Mexico City,North America,Occupation,Security,The Americas,The Media,USA,WalkingPhotographer Collection: Bloomberg 2013 BloombergPetroleos Mexicano (Pemex) workers walk to the explosion site at the company's headquarters building in Mexico City, Mexico, on Tuesday, Feb. 5, 2013. Mexican authorities said a buildup of gas led to the blast last week that killed 37 people at Petroleos Mexicanos’s headquarters, the first official attempt to explain the nation’s deadliest explosion since 2006. Photographer: Susana Gonzalez/Bloomberg via Getty Images