Four elephants have died in Madhya Pradesh's Bandhavgarh Tiger Reserve and three others are receiving medical treatment, wildlife officials have told NDTV. The cause of death of the four is not yet known; a post-mortem is being conducted at Jabalpur's School of Wildlife Forensics and Health, with veterinarians from the state's Pench and Kanha forests assisting. The health of the 11th and 12th members of the herd are normal at this time.