A gas cylinder blast in a house at Dholahat in West Bengal's Pathar Pratima has claimed eight lives, including four children. The explosion, which occurred on Monday night, triggered a massive fire, intensified by the presence of stacked firecrackers inside the house. The incident has sparked a political controversy, with the BJP demanding a National Investigation Agency (NIA) probe and the TMC maintaining that the police are already investigating and that the state government has a \"zero-tolerance\" policy towards such incidents. The blast has also raised concerns about the safety of illegal firecracker manufacturing units, which have been linked to several recent accidents in the state.