Blast Rocks Mexico's Pemex Building
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Rescue workers search for victims at the headquarters of state-owned Mexican oil giant Pemex in Mexico City following a blast inside the building, January 31, 2013.
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Rescue workers carry an injured survivor after an explosion in a building at Mexico's state-owned oil company PEMEX complex, in Mexico City, January 31, 2013.
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Relatives of Pemex's employees wait for information of their family members outside Pemex hospital in Azcapotzalco in Mexico City, January 31, 2013.
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The Minister of the Interior, Miguel Angel Osorio Chong (C) addresses a press conference at the headquarters of state-owned Mexican oil giant Pemex in Mexico City following a blast inside the building, January 31, 2013.