A major fire broke out at a fuel station near Raj Bhawan in Bhubaneswar following an explosion on Wednesday. Initial reports said four persons suffered serious burn injuries. The explosion at the fuel filling station was so intense that nearby houses felt terrible shake. Cause of the fire was being ascertained by the police and fire services personnel. Four fire tenders were rushed to the spot to douse the blaze. Prima facie, a CNG tank at the fuel pump exploded, leading to the fire.