The accident took place when the driver of the car in which the victims were travelling failed to control the vehicle and rammed into a truck.
The victims, all residents of Kharswan, were going to Rajrappa in Ramgarh district to perform the last rite of a family member, Sub-Divisional Police Officer (Seraikela), K V Raman said.
While four of the occupants of the car were killed on the spot, one of them succumbed to his injuries on way to hospital, he said.
The other two injured were undergoing treatment in M G M Hospital, Raman added.
The drivers of both the vehicles fled the scene after the accident.