MOSCOW (AP) — Russia plans to retaliate against Turkey for the downing of a warplane by imposing sanctions, cutting economic ties and scrapping major investment projects. Since the plane was shot down Tuesday in disputed circumstances on the Syria-Turkey border, Russia has already restricted tourism, left Turkish trucks stranded at the border and announced the confiscation of large quantities of Turkish food imports. On Thursday, Russian Prime Minister Dmitry Medvedev ordered his government to also draft sanctions against Turkey within the next two days in response to the downing of the Russian Su-24, which he described as an "act of aggression against our country.Read more on NewsOK.com