http://www.theguardian.com/world/2015/nov/24/turkey-shoots-down-jet-near-border-with-syria
A Turkish military statement said the plane violated Turkish airspace in Hatay province and was warned “10 times in five minutes”.
http://www.aljazeera.com/news/2015/11/turkey-shoots-warplane-syria-border-151124081519290.html