At least two people were killed and several others injured in an explosion at the R.M. Palmer Co. chocolate factory in West Reading, Pennsylvania on Friday evening. The blast sent a plume of black smoke into the air, resulting in the destruction of a building at the facility and damage to a nearby building. Reading Hospital received a total of eight patients, with one transferred to another hospital and the other five expected to be treated and discharged. The cause of the explosion is still under investigation.