Ranchi, April 7 -- One person was killed and eight others were injured in an explosion at a private steel plant on Monday in Jharkhand's Ramgarh district, officials said. Ramgarh SDO Anurag Kumar Tiwari said the furnace blast happened at Hesla around 4am. "One worker has died during treatment. We are currently monitoring the others, but the condition of five workers remains extremely critical as they have sustained severe burn injuries. The next 24 to 48 hours are crucial," said Dr Anant Kumar Sinha, chief of Devkamal Hospital and Devenika Hospital and Research Centre in Ranchi where injured were admitted. Ramgarh deputy commissioner Faiz Aq Ahmed Mumtaz said, "The industry department has taken immediate action in the matter. We have ordere...