The accident has left 3 dead so far, while 40 others have been injured. The fire broke out inside the campus of Indian Oil. Massive fire broke out at an Indian Oil Company located in West Bengal’s Haldia district. The accident has left 3 dead so far, while 40 others have been injured. The fire broke out inside the campus of Indian Oil. As per the statement issued by IOCL after the incident, the primary cause of the accident was a flash fire that took place while undertaking shutdown and maintenance of various major units.