Two shipwrecks found during a failed search for Malaysia Airlines flight 370 were merchant vessels that sank in the 19th Century, researchers say, the BBC reports.
The ships, discovered 2,300km (1,400 miles) off Western Australia, have been narrowed down by experts to a handful of coal-carrying British vessels.
Searchers stumbled on the wrecks during a trawl of the Indian Ocean in 2015.
Australian maritime researchers used sonar pictures and shipping records in their efforts to identify the vessels.
The location of MH370 remains unknown more than four years after it disappeared, carrying 239 people, en route from Kuala Lumpur to Beijing.
