Turkish armored vehicles are transported to the Turkish-Syrian border in Hatay Province, Turkey, Jan. 18, 2018. (Photo: Xinhua)

DAMASCUS, Oct. 7 (Xinhua) -- The Turkish military campaign against the Kurdish-led Syrian Democratic Forces (SDF) began on Monday night in northeastern Syria, Syria's state TV reported, branding the military operation as a "Turkish aggression."

The Turkish attack targeted the SDF-held Tal Tawil area in the northeastern countryside of Hasakah province in northeastern Syria, said the report.

The attack comes as Turkey has been threatening recently to start a military operation in northeastern Syria against the Kurdish-led groups, which it deems as terrorist groups.