Divya Delhi:  An explosion at a residence in Bahadurgarh, Jhajjar district, Haryana, killed four family members and injured one. The incident occurred Saturday, authorities said. The cause of the blast is unknown as forensic investigators investigate. Police say the blast happened in the bedroom, dispelling local suspicions of a domestic gas cylinder explosion. Police said the explosion destroyed the residence, killing four and badly injuring one. The hospitalized victim is receiving therapy.DCP Mayank Mishra told ANI, “This is not a cylinder blast; it occurred inside the bedroom. It affected the whole house. Four people died immediately, and one is hospitalized with critical injuries. All deceased were family.” Experts in explosion analysis and the Forensic Science Laboratory (FSL) investigated the blast. DCP Mishra stated that the forensic team is investigating the blast's cause.The gas cylinder is unharmed, but the AC unit is extensively damaged, making it difficult to confirm an explosion.The blast analysis specialist section and the FSL team will help us examine the situation.”