After discussing recent geopolitical events with world leaders during the Paris climate talks, Russian President Vladimir Putin said the vast majority of leaders agree that Turkey's attack on a Russian bomber was unnecessary, as the aircraft was in no way threatening Turkey.

He went on to say that Russian authorities now have additional evidence that the aircraft was shot down with the express purpose of protecting Islamic State oil deliveries. The oil from IS-controlled fields is being exported to Turkey on an industrial scale, he said.

Moscow has grounds to suspect that the Su-24 was downed by Turkish jets on November 24 to secure illegal oil deliveries from Syria to Turkey, Putin said.