Visakhapatnam, Dec 28 (ANI): Blast at a Ferro Alloys factory killed one and injured 12 others on Sunday (December 28) in Visakhapatnam city of Andhra Pradesh. As per factory workers, a boiler burst in the factory injuring people. Education Minister of Andhra Pradesh, Ganta Srinivasa Rao, visited the hospital. Medical Superintendent of Seven Hills Hospital, Doctor M Dinakar, said that two patients are in a serious condition. This is second such accident that took place in one year at the Ferro Alloys factory. The state government has set-up a committee to enquiry on the accidents that happen regularly in the factory.