A US F-15 fighter jet reportedly crashed in southwest Iran, with a new report suggesting it may have been struck by a China-made shoulder-fired missile.

China may also have provided Iran with a long-range early-warning radar that spots stealth aircraft meant to evade detection, people familiar with the matter tell NBC News

The US F-15E Strike Eagle shot down over southwestern Iran last month was likely struck by a Chinese-made shoulder-launched missile, according sources cited by NBC.