There are now 26 countries searching for the missing Malaysian plane which has been missing for 11 days and there are a few theories as to what may have happened to it.
What we do know is that the two communications systems were disabled, deliberately or otherwise, and investigators have looked at the mobile phone records of the passengers but found no evidence of any attempted calls or texts.
Then there is the 'ping' sent by the plane six hours after it disappeared from Malaysian radar screens which showed the plane was still operational.
One theory is that the plane has landed somewhere with the Andaman and Nicobar Islands mentioned as the islands are in the direction that the plane was last seen to be heading although the only four landing strips among the 570 islands are monitored by Indian military radar and a jumbo jet would have been noticed.
Kazakhstan has also mentioned as a possible landing site for a stolen plane, especially as making a landing in the vast desert spaces would negate the need for a runway although the Kazakh Civil Aviation Committee said it would have not only been picked up by their radar but it would have to have flown across Indian, Pakistan and Afghanistan airspace to reach Kazakhstan.
China's Taklamakan Desert is another possible destination but again would require a run through the radar systems of several countries as would another landing site in Pakistan although making it through the radars is tricky, but not impossible according to another theory which has the plane hiding in the shadow of another airliner.
The theory is that as MH370 was flying without its transponder, another plane wouldn't know it was there and as it entered other countries airspace it would have shown up as one single blip on the radar with only the transponder information of one plane lighting up the radar screens."
A darker theory is that the plane was taken by terrorists and is being stored somewhere and will take off again to be used in a 9/11 style terror attack and there is a possibility that one of the many countries it flew over with its communication devices switched off would have led to scrambled fighter jets and the plane being shot down and nobody wants to put there hands up to shooting down an airliner full of passengers.
With most of the theories, the plane has landed somewhere which offers some hope that the 239 passengers and crew on board may still be alive.
Unfortunately, i do fear that there will not be a happy ending to this and when it is finally discovered it will be in several pieces strewn across a wide area.