The accident occurred near Dhulijora, about 35 km from here, in the early hours causing death of three persons, they said.
The occupants of the jeep belonging to Bhelwadihi village in Jharsuguda district were returning after attending a wedding near Bolangir town when they met with the accident.
The bride or the groom was not in the jeep.
Though the cause of the accident was being investigated, it prima facie appeared that the driver had lost control over the vehicle after crossing a small bridge and hit against a tree, they said.