Malaysia signed a deal with an American firm on Wednesday to re start the search for Malaysian Airlines Jet MH370 almost four years after the plane disappeared, with the company to receive up to $70 million if their attempt is successful. This new 90 day long hunt, will start in January when a high-tech vessel leased by the seabed exploration firm, 'Ocean Infinity', reaches a new search zone in the southern Indian Ocean. The Malaysia Airlines jet disappeared in March 2014 with 239 people, mostly from China, on board en route from Kuala Lumpur to Beijing, triggering one of the world's greatest aviation mysteries. No sign of the plane was found in a 120,000 square kilometer (46,000 square mile) search zone selected by satellite analysis of the jet's likely trajectory.