Where is missing Malaysia Airlines MH370?

Today, Malaysia confirmed that the diversion of Malaysia Airlines MH370 airliner was a 'deliberate act' through Prime Minister. Earlier, it was also revealed that the last confirmed signal between the plane and the satellite was at 8.11 AM.

Although the signal from missing plane does not have coordinates data, possible locations can still be calculated from the distance of the plane to the satellite at the time of the transit. Below map shows the possible locations of MH370 based on satellite data.

Here is from Malaysia Prime Minister Najib Razak's statement:

According to the new data, the last confirmed communication between the plane and the satellite was at 8.11am Malaysian time on Saturday, March 8. The investigations team is making further calculations which will indicate how far the aircraft may have flown after this last point of contact. This will help us to refine the search. 

Due to the type of satellite data, we are unable to confirm the precise location of the plane when it last made contact with the satellite. 

However, based on this new data, the aviation authorities of Malaysia and their international counterparts have determined that the plane’s last communication with the satellite was in one of two possible corridors: a northern corridor stretching approximately from the border of Kazakhstan and Turkmenistan to northern Thailand, or a southern corridor stretching approximately from Indonesia to the southern Indian Ocean. The investigation team is working to further refine the information.

Source :  Press statement on MH370 – Najib Razak

Look at the below map again. I do not want to speculate anything but the northern arc is passing through China's Xinjiang Uyghur Autonomous Region where there is an ongoing conflict.

Here is from The Straits Times:

There is a possibility the hijacking of MH370 could be linked to ongoing tensions between the Uighurs, a minority Muslim group from Xinjiang in north-west China, and the Chinese government, one security expert has said. Xinjiang shares a border with Kazakhstan, among other countries.