'Panda's service revolver was found at the spot. We suspect he might have killed himself after firing at his family members,' Biswal said, adding the exact cause of the deaths would be known after investigation.

A senior police official said that the bureaucrat was under stress after the Central Bureau of Investigation (CBI) allegedly raided his homes in Deogaon and New Delhi.

Panda had worked in the state in various capacities, including as collector, divisional commissioner of revenue and special relief commissioner before going on deputation to the central government.