A couple and their son-in-law were killed when two motorcycles collided head on near the Padmapur Gate in the Anandpur area of Keonjhar district on Friday.
The deceased were identified as Sahadev Behera, his wife Chandini and their son-in-law Abhiram Behera of Kalabila village under the Ghasipura police station in the district.
The mishap took place when the trio was travelling by a motorcycle while another motorcycle dashed against with it.
The trio fell from the two-wheeler sustaining critical injuries. While one of them died on the spot, two others were rescued and rushed to the Anandpur Hospital, where they succumbed to their injuries.
Police seized the vehicle and started an investigation into the incident.