This photo provided by Ryan Meador shows an explosion at The Williams Companies Inc. plant in the Ascension Parish town of Geismar La., Thursday, June 13, 2013. The fire broke out Thursday morning at the plant, which the company's website says puts out about 1.3 billion pounds of ethylene and 90 million pounds of polymer grade propylene a year. (AP Photo/Ryan Meador)

1 dead, 73 hurt in La. plant explosion

Ambulances and helicopters took at least 30 people from a burning chemical plant after an explosion Thursday in Louisiana, officials said.