Assistant General Manager at the plant L Srinivas breathed his last at a hospital here, while Chargeman P Narayana Rao and Foreman M B Muralidhara Raju who were sifted to a hospital in Mumbai passed away today, sources said.
Four others, General Manager D S Kalsi and Assistant General Manager M B R S Sarma and an employee of a private company R Bhattacharya were undergoing treatment at a hospital in Mumbai, while Deputy Manager Prabhakara Rao was under treatment at a hospital here and their condition was stated to be critical, sources said.
Explosion at the state-owned Rashtriya Ispat Nigam plant occurred at the 'oxygen control unit' on Wednesday night.
Union Steel Minister Beni Prasad Verma has ordered a high-level enquiry into the mishap.