Rourkela/Bhubaneswar: Diwali celebrations took a tragic turn on Sunday after a 14-year-old boy died in a firecracker explosion in Rourkela and more than 100 people were injured in separate incidents across the state.The deceased was identified as Chinmaya Kumar Sahu, a Class VIII student. His sister also sustained injuries after a firecracker kept inside a glass bottle exploded at Kaushalya Nagar in Rourkela on Diwali night. The siblings were reportedly on their way to their tuition teacher’s house around 9 pm to join the celebrations when shards from the shattered bottle hit them.Chinmaya suffered severe injuries to his leg and was declared dead on arrival at Rourkela Govt Hospital. His sister was given preliminary treatment at the hospital and later shifted to Ispat General Hospital.Raghunathpalli police inspected the site on Monday and registered an unnatural death case. An investigation has been launched to trace the person responsible for igniting the firecracker. Chinmaya’s body was handed over to his family after postmortem.Hospitals across the state received numerous cracker-related injury cases. Around 80 people were treated at SCB Medical College and Hospital in Cuttack and 40 in Capital Hospital, Bhubaneswar. At least 28 people sought treatment at AIIMS Bhubaneswar during the Diwali weekend.SCB superintendent Dr Jyotish Chandra Choudhury said no serious burn cases had been reported so far, adding that most injuries treated on Sunday night and Monday morning were minor.In Bhubaneswar’s Shikhar Chandi area, a fire broke out at the govt-run Silk Farming Office after suspected sparks from firecrackers burst nearby landed on combustible material stored on the premises. Two teams from Chandrasekharpur Fire Station went to the spot and brought the flames under control. No injuries were reported, though officials are assessing the damage.In BDA Colony, a bus caught fire after a cracker allegedly landed on it, triggering panic, before firefighters doused the flames.Two thatched houses were gutted in separate incidents in Kendrapada and Khurda districts. A two-room house in Demal village under Aul police limits was destroyed while the family was asleep. Another five-room thatched house caught fire at Bachharapatan in Jatani. No injuries were reported.