A powerful explosion at a pharmaceutical plant in Massachusetts that has a checkered history left one worker missing, sent four people to the hospital and blew an industrial-sized vat into a parking lot, officials said Thursday.
The explosion happened around 1 a.m. at the Sequens/PCI Synthesis plant in Newburyport, officials said. Video footage showed most of the roof torn off a building, and the blast blew a vat from inside the building 30 feet into a parking lot, acting Fire Chief Stephen Bradbury III said in a news release.
