The wreckage of the missing flight MH370 could have been victim to the first ever "remote hijacking", an historian has claimed.
The search for Malaysia Airlines Flight 370, which vanished with 239 people on board en route to Beijin from Kuala Lumpur, lasted three years and cost $160 million.
Norman Davies, European historian and author, said that new Boeing software installed after 9/11 could have been abused to hijack the plane.
He also speculated that it could be buried in Antarctica, in his new book Beneath Another Sky.
Mr Davies said The Boeing Honeywell Un-interruptible Autopilot, a system that allows planes to be remotely controlled to allow authorities to intercept a plane in the event of hijacking, could have been co-opted by hijackers.
This would be the first ever "remote hijacking".
"The missing Malaysian Airlines plane was fitted with one of these Honeywell devices. In other words it was capable of being taken over remotely. Is this what happened? I am not an expert, but there are conclusions you can draw as to what may have happened," he said.
Mr Davies said the world is currently "in the realms of cyber warfare" and the remote hijacking is "a very real possibility", according to The Mirror.
He said it's possible cargo on board the plane may have contained some kind of sensitive material, that hijackers did not want to get to China.
Another new theory posited by Mr Davies is the plane could be buried in ice in Antarctica.
He said the Boeing 777 plane could have glided for several hours and landed in Antarctica - where it could be buried for decades.
The historian is optimistic that "sooner or later it will be found".