Malaysia Airlines Flight MH370 Search Yields Old Ship Wreck (Photo)

The hunt for missing Malaysia Airlines Flight MH370 has uncovered a previously uncharted shipwreck deep underwater, leading officials to say Wednesday that if the plane is in their search zone they will find it.

The Australian-led team is scouring the southern Indian Ocean seabed in hope of finding the final resting place of MH370, which vanished on March 8, 2014 en route from Kuala Lumpur to Beijing.

No wreckage from the flight, which was carrying 239 people, has ever been found in one of aviation's greatest mysteries.

In a search update, the Australian Transport Safety Bureau said it spotted "multiple small bright reflections" on the otherwise featureless seabed which warranted closer inspection.

Data from a high-resolution sonar scan using an autonomous underwater vehicle revealed spots worth probing, mostly about the size of a cricket ball but some larger, at 3,900 metres (12,795 feet) down.

While the objects appeared to be of man-made origin, they failed to have all the characteristics of a typical aircraft debris field so authorities sent in an underwater camera which discovered the shipwreck.