1 worker dead, 12 hurt in Mangaluru refinery blast, fire. A tragic fire and explosion erupted at Mangalore Refinery and Petrochemicals, resulting in one tragic death and a dozen injuries. The blast, which originated from the Coker Hydrotreater Unit, occurred around noon and was powerful enough to be felt as far as 12 kilometers away, sparking fear among residents in the surrounding coastal areas. Fortunately, emergency services swiftly contained the fire post-explosion.