At least seven people were killed and 22 others injured after a sleeper bus travelling from Rishikesh to Indore collided with a trailer and burst into flames on the Delhi-Mumbai Expressway near Rajasthan's Dausa. The accident occurred around 2:30 am, with visuals showing the bus and trailer engulfed in flames as passengers screamed for help. According to officials, five victims died from burn injuries while two others succumbed to head injuries. Most of the injured, including women and children, have been admitted to the Dausa district hospital. Police suspect that the bus driver may have dozed off, while high speed is also being examined as a possible factor. Local residents have alleged delays in rescue operations and claimed that cigarette packets stored in the bus may have contributed to the rapid spread of the fire. Authorities are investigating the exact cause of the accident.