"We are planning to analyze the flight data. Following a proper examination of the data, we will reveal results on Monday, December 21," the ministry stated.
The black boxes examination process will be as transparent as possible, the deputy head of the Russian Aerospace Forces told journalists.
Putin described the Turkish attack as a "stab in the back" carried out by "accomplices of terrorists." One of the plane’s two pilots was killed by rebel gunfire from the ground after they ejected. The second pilot was rescued.