Turkish President Recep Tayyip Erdogan has warned Russia's President Vladimir Putin not to "play with fire" over his country's downing of a Russian jet.
Mr Erdogan also said he wanted to meet Mr Putin "face-to-face" at climate talks in Paris to resolve the issue.
Mr Putin wants an apology from Turkey before he will speak to Mr Erdogan, the Russian president's aide said.
Russia has decided to suspend its visa-free arrangement with Turkey, Russia's foreign minister announced.