The rebel free Syrian Army has revealed that it has shifted its leadership from Turkey to areas of Syria controlled by opposition forces.
A video posted online appears to show the group’s commander-in-chief confirming the move.
Meanwhile, Turkey’s military is said to have deployed armoured vehicles and heavy weaponry to a border area near the Syrian province of al-Raqqa.
The Tel Abyad crossing has seen intense fighting between Syrian rebels and government forces.
Turkish civilians have been injured by stray bullets and shelling.
In the Turkish border town of Reyhanli on Saturday, 12 wounded Syrians were rushed to hospital. Four of them were reported to be in a critical condition.
Elsewhere, in Syria’s Idlib province, rebels say they shot down a fighter jet on Saturday as it flew over the town of Atarib. They reportedly fired it at while attacking a military base.
“The building has been attacked. God also helped us and we brought down a Mig warplane,” one rebel said.
Also on Saturday, video purportedly showed people searching for survivors after an attack on a building in the Al Mayser district of Aleppo.