NATO member Turkey shot down a Russian warplane a "matter of seconds" after it violated the country's airspace near the Syrian border on Tuesday, U.S. defense officials told NBC News. "They were in Turkish airspace only 2 to 3 seconds, a matter of seconds" before the Turkish F-16s attacked, the officials said.

NATO member Turkey shot down a Russian warplane a "matter of seconds" after it violated the country's airspace near the Syrian border on Tuesday, U.S. defense officials told NBC News. "They were in Turkish airspace only 2 to 3 seconds, a matter of seconds" before the Turkish F-16s attacked, the officials said.