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A smashed car sits in front of an apartment complex destroyed by an explosion at a fertilizer plant in West, Texas, as firefighters conduct a search and rescue Thursday. A massive explosion at the West Fertilizer Co. Wednesday night killed as many as 15 people and injured more than 160, officials said overnight.
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A person looks on as emergency workers fight a house fire after a nearby fertilizer plant exploded Wednesday in West, Texas.
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A fertilizer plant that exploded still smolders in West, Texas, on Thursday.
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Bobby Rios, right, helps clean up the shattered display windows at Treasure on the Tracks in the central business district of West, Texas, on Thursday.
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Firefighters walk next to a destroyed apartment complex near a fertilizer plant that exploded earlier in West, Texas, early Thursday morning.
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An emergency worker walks through damaged apartment building following a fertilizer plant explosion Wednesday in West, Texas.
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A view of homes on the North side of the fertilizer plant explosion site Thursday in West, Texas.
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A plume of smoke rises from a fertilizer plant fire near Waco, Texas. A massive explosion at the West Fertilizer Co. killed as many as 15 people and injured more than 160, officials said Thursday morning.
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A firefighter handles a children's bunk bed during a search and rescue of an apartment destroyed by an explosion at a fertilizer plant in West, Texas, on Thursday.
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In this Instagram photo provided by Andy Bartee, a plume of smoke rises from a fertilizer plant fire in West, Texas on Wednesday, April 17, 2013. An explosion at a fertilizer plant near Waco Wednesday night killed as many as 15 people and injured more and sent flames shooting high into the night sky, leaving the factory a smoldering ruin and causing major damage to surrounding buildings. (AP Photo/Andy Bartee)
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Gov. Rick Perry, left, and Lt. Gov. David Dewhurst, right, attend a news conference about the state's emergency response to the explosion and fires in West, Texas, during a news conference Thursday in Austin, Texas.
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Firefighter conduct search and rescue in the blast zone of an explosion at a fertilizer plant in West, Texas, on Thursday.