As many as 50 people may have been killed in an explosion Sunday at a US energy plant in Connecticut, a hospital spokesman told AFP, adding a search and rescue operation was under way. "The reports vary from a few, several to possibly as many as 50 dead," Brian Albert from the Middlesex hospital, which was treating several of those injured in the blast, told AFP.
"They are in the process of search and rescue," Albert said, adding the Middlesex was currently treating six patients and one other had been transferred to the nearby Hartford hospital.