The explosion occurred early Sunday in Pisheen, in the troubled Sistan-Baluchistan region bordering Pakistan.

VOA: standard.2009.10.18

President Obama will speak after returning from his fourth trip to the Gulf region since the April 20 explosion and fire, which killed 11 workers and ruptured a deep-sea oil well.

VOA: standard.2010.06.15

He worked in vineyard management for Heublein--he persuaded the company to get into winemaking--at the start of the region's explosion and the height of the grape boycotts.

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Another reason to believe that the economic gains might stick is the explosion of infrastructure projects across the region.

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Even with details about the explosion unclear, tensions ran high in the volatile region Sunday amid word of the reported attack, which was condemned by some officials across the Middle East.

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