On Thursday, tensions between Russia and Turkey continued to escalate, threatening a total breach of the country's relations as Russian government officials prepare to cut economic ties and curb investment projects in Turkey, the New York Times reports. The proposed financial severance, which would include the shelving of a multibillion-dollar gas pipeline project, comes after Turkish officials refused to apologize for the downing of a Russian warplane on Tuesday. Meanwhile, French President François Hollande visited Russian President Vladimir Putin in Moscow Thursday, continuing his campaign to rally an international response to ISIS.