Raw Video: 2,500 Flee Chemical Leak in Pa.

A corrosive liquid overflowed from a tank at a chemical plant in western Pennsylvania on Saturday...  More »

A corrosive liquid overflowed from a tank at a chemical plant in western Pennsylvania on Saturday, evaporating into a toxic cloud that snaked along the ground and forced about 2,500 to flee. At least three residents were believed to be injured. (Oct. 12)  « Less