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Dust storm

Rescue personnel from the Tonkawa Fire Department extricate a woman pinned in vehicle after it was involved in an accident on Interstate 35, one of 12 accidents involving 27 vehicles which took place during massive dust storms sweeping through Kay County, Okla. on October 18, 2012. Ambulances from the cities of Blackwell, Tonkawa and Ponca City transported injured drivers and passengers to hospitals in Blackwell and Ponca City. (AP Photo/The Ponca City News, Rolf Clements)

Dust storm shrouds northern Okla.

A massive dust storm swirling reddish-brown clouds over northern Oklahoma

triggered a multi-vehicle accident along a major interstate Oct. 18,

forcing police to shut down part of the heavily traveled roadway amid

near blackout conditions.