Syrian rebel forces allegedly claimed a key village on the Turkish border Monday, according to Agence France Presse. 
The Syrian Observatory for Human Rights published information saying that the opposition rebels were in "full control" of the border crossing with Turkey, Kasab, representing the first successful "victory" by the rebels in the regime-controlled Latakia province.
"The rebel fighters are in control of Kasab's main square. There is fighting on the edges of Kasab, but the rebels are in control of the village now," said Observatory director Rami Abdel Rahman.
However, some sources suggest that the rebel victory is not yet certain.
"The situation is unclear, the fighting continues, and neither side is in control of the village," according to AFP's source.
Regime and opposition fighters have been fighting at Kasab in Syrian President Bashar Al Assad's "Alawite heartland"  for four straight days. At least 130 regime and opposition fighters died in the clashes on Saturday and Sunday alone.
The incident has re-sparked tensions between Ankara and Damascus, with Assad describing the incident as a "flagrant act of aggression."
Turkish warplanes previously gunned down a Syrian government helicopter in September  that was two kilometers inside its airspace.