ANKARA – Turkey will open fire on foreign planes violating Turkish airspace in the future, President Recep Tayyip Erdogan warned amid a diplomatic crisis caused by the downing of a Russian warplane by the Turkish Air Force, the Russia Today channel reported on Thursday. “If another violation of our aerial border happens, we can respond in the same way,” he said. “The plane was shot down within the rules of engagement announced earlier,” he added. On Tuesday, a Turkish F-16 fighter jet fired at and downed a Russian warplane conducting a combat mission in Syria. Ankara maintains the Russian Su-24 bomber crossed the border and remained in Turkish airspace for 17 seconds. Russia denies any violations. It also rejects Turkey’s claims that its military repeatedly warned the pilots of the Russian jet before attacking it. The country insists there are foreign fighters in the region as well as elements of terrorist infrastructure. Moscow believes Ankara is shielding terrorist forces in Syria with the goal of continuing to smuggle oil across the border.