Ashis SenapatiKendrapada: A five-year-old girl was killed and her parents injured on Sunday after a domestic LPG cylinder exploded, triggering a major fire at their house in Arabal village under Dharmasala police station limits in Jajpur district.According to police, the blast occurred around 9 am while the girl’s mother was preparing meals. The child, Mamali Mallick, was inside the kitchen when the explosion took place. Hearing the blast, her father rushed to the kitchen to save his wife and daughter, but suffered serious burn injuries.The injured couple, Abhiram Mallick (38) and his wife, Tilotama Mallick (35), were initially admitted to the community health centre at Dharmasala. They were shifted to SCB Medical College and Hospital in Cuttack as their condition was serious. Police sent the child’s body to the district headquarters hospital in Jajpur for autopsy. Police, fire brigade personnel and local residents doused the flames. “We are investigating the case,” said Chinmayee Sahoo, IIC of Dharmasala police station.