The tragedy struck the R.M. Palmer Company, which says on its website it has been making candy since 1948, specializing in seasonal items for Easter, Halloween and Valentine's Day. It employs 850 people.
The explosion destroyed Palmer's building number two and damaged neighboring building one, Holden said.
The cause remained under investigation, although officials ruled out a continuing danger to the area, Holden said.
Besides the two dead and nine missing, several more people were injured, Holden said.
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Home/World News/Two Dead, Nine Missing In Pennsylvania Chocolate Factory Explosion