The victims were proceeding to Puri from Patrapur area in Ganjam district for immersing the ashes of a family member when the vehicle skidded off a road at Bhailipur area and slipped into the canal, the police said.
Two children and a woman were among those killed. Local people launched a rescue operation after the accident and pulled out the victims from the vehicle.
The injured were initially rushed to a nearby hospital at Chandanpur and then shifted to a facility in Puri, the police said. Chief Minister Naveen Patnaik expressed grief over the death of the five persons and announced an ex-gratia of Rs 2 lakh each to the next of kin of the deceased, an official in the Chief Minister's Office (CMO) said.