Syria stated that Turkish aircraft made crash was a military aircraft and made exploration.

'Our aircraft was shot off in international air space'
Syria: The aircraft was for military exploration
Leaders are discussing Syria
Emergency Meeting call to
A diplomatic note was sent to Syria
DAMASCUS – Syria Foreign Ministry spokesman Jihad Al-Makdissi said “According to us there was something unknown in our air space and our air defense shot that thing. Later on we discovered that it was Turkish aircraft.” Makdissi indicated that Syria defended its sovereignty rights.
Syria Foreign Ministry spokesman said Turkish aircraft shot down was a military aircraft and was there with exploration purpose.
Makdissi indicated that Syria does not have hostile intentions against Turkey but he accepted that there is a serious difference of opinion between two countries.
(ntvmsnbc.com, 24 June 2012)