MH370: Four-year hunt ends after private search is completed

The four-year hunt for Malaysia Airlines flight MH370 has ended with the latest, privately funded search coming to a close.

US-based Ocean Infinity had been using a deep-sea vessel to survey a vast area of the southern Indian Ocean.

But it found nothing and Malaysia's government says it has no plans to begin any new searches.

The plane disappeared on 8 March 2014 while flying from Kuala Lumpur to Beijing with 239 people on board.

Official search efforts ended last year and there are still fierce debates about what happened to the flight.

Grace Nathan, whose mother was on MH370, said she was opposed to ending the hunt.

"People might think: 'Why are these people still harping on about this, it's been four years'. It's important for people to remember that MH370 is not history," she told the Guardian newspaper.

There is still no answer. Finding the plane, or at least more bits of its wreckage, could prove key but investigators have very limited information about the plane's last hours.

Experts still cannot come to a definitive conclusion as to whether MH370 remained under the pilot's command, or crashed out of control into the sea.