The disappearance of Malaysia Airlines Flight 370 in March 2014 is one of the world’s biggest aviation mysteries. Malaysia said on Wednesday that the search for the aircraft would end next week, after more than four years. Fragments of the Boeing 777, which was on its way from Kuala Lumpur to Beijing, were found washed up on islands off the African coast. 

The Australian Transport Safety Bureau believes the airliner most likely ran out of fuel and crashed after flying far off course. 

It believes all 239 passengers and crew on board were long dead inside a depressurized cabin and cockpit. “MH370: Mystery Solved,” written by Canadian air crash investigator Larry Vance, concludes that the pilot deliberately crashed the plane in an area where it would sink into unexplored depths of the Indian Ocean. Peter Foley, who coordinated the search for Malaysia, on Tuesday dismissed the book’s claim.