Three injured persons were rescued and admitted to hospital, a district health official said, adding nearly 30 devotees were on board the ill-fated tractor-trolley. The tragedy took place in the Pandhana area when devotees were riding on the tractor which was carrying Goddess Durga idols from various villages for immersion, Inspector General of Police (Indore rural range) Anurag told PTI. Meanwhile, Chief Medical and Health Officer (CMHO) Dr OP Jugtawat said three injured persons were rescued and admitted to the Khanda district hospital. He said about 30 devotees of varying ages were on board the tractor-trolley at the time of the accident. Eyewitnesses said panic ensued immediately after the vehicle fell into the lake with people frantically searching for their relatives.