Syria reported four Turkish nationals were killed in Aleppo. It's not clear whether or not they were combatants. Perhaps more information will clarify.
In March 2012, Syrian forces captured 13 French officers. They were caught redhanded with FSA fighters. At the time, France's foreign ministry dismissed the report. Lying is official policy.
On October 4, Syria News headlined "Turkey: Syrian rebels have taken responsibility for attack on Turkish village?!" saying:
Germany's ZDF television reported the news. It said:
"Rockets and Mortar Fire -- Turkey exacts vengeance for an attack from the Syrian side which took place yesterday afternoon. For weeks, Ankara has warned for any provocation in direction to Turkey. Until late at night, the fighting has taken place. Meanwhile, Syrian rebels have taken responsibility for this provocation."
Another ZDF program called "Heute in Europa" reported the same story, saying:
"Yesterday night, Turkey took revenge for attacks from REBELS in Syria that have previously attacked a Turkish border village."
Mortars were launched from territory controlled by FSA fighters. A leaked video clip said they admitted responsibility for striking Akcakale and killing five Turkish nationals.
On October 6, Mossad-connected DEBKAfile headlined "Syrian soldiers told to stay 10km from Turkish border, forming buffer zone."
They were ordered out of artillery range. "Turkey had begun clearing a 10 km deep strip on the Syrian border" to facilitate FSA movement. The London Guardian reported the same thing.
Clearly the ball advanced closer to war. False flag provocations make it more likely.
On October 6, Voice of Russia 's Roman Mamonov headlined "Turkey Effectively Declares War Against Syria," saying:
Ankara preparations are underway. Parliamentary authorization was approved. Institute of Strategic Estimates expert Azhdar Kurtov said:
"Declarations made by the Turkish leadership speak for themselves. This is not just militant rhetoric but an order to the armed forces, in case of an emergency, to cross the border and carry out military activities on Syrian territory. What is this if not a war?"
"Though, certainly, Turkish commanders and politicians will think twice before starting an invasion. In my opinion, they will carry out a massive probing, just like towards another neighboring country, Iraq. The Turkish armed forces supported by their air force are quite capable of carrying out local hostilities on Syrian territory."