The driver lost control of the vehicle and rammed into the cars and bikes before coming to a halt blocking the approach road to the flyover.
"The accident occurred around 9 AM when the cluster bus, run by Delhi Integrated Multi-Modal Transit System (DIMTS), was heading from Najafgarh to Kapashera. The driver of the bus fled from the spot after the accident in which four persons were injured," said a police officer.
Traffic remained affected on the road for a couple of hours due to the accident.