The international team hunting Malaysia Airlines Flight MH370 in the remote southern Indian Ocean failed to turn up anything on Friday, and Australia’s deputy prime minister said the suspected debris may have sunk.
Aircraft and ships have also renewed a search in the Andaman Sea between India and Thailand, going over areas that have already been exhaustively swept to find some clue to unlock one of the biggest mysteries in modern aviation.
The Boeing 777 went missing almost two weeks ago off the Malaysian coast with 239 people aboard. There has been no confirmed sign of wreckage but two objects seen floating deep south in the Indian Ocean were considered a credible lead and set off a huge hunt on Thursday.
Australian authorities said the first aircraft to sweep treacherous seas on Friday about 2,500 km (1,500 miles) southwest of Perth was on its way back to base without spotting the objects picked out by satellite images five days ago.
“Something that was floating on the sea that long ago may no longer be floating,” Deputy Prime Minister Warren Truss told reporters in Perth. “It may have slipped to the bottom.”