The oil tank apparently fell off the truck as it crossed over the center line and hit the median strip. The tank crashed into the vehicles on the opposite side of the road.

   The firefighters confirmed there were four fatalities, including an infant, and one injured. They said it would take time to identify them due to the damage to their bodies. The fire was brought under control within an hour.

   The authorities said a flaw in the truck's brakes may have caused the accident as witnesses told them they saw the vehicle zigzagging on the road.

   Police said they began conducting an investigation to figure out the exact cause of the crash, including possible mechanical flaws. (Yonhap)