"After Nusaybin was shelled from the territory of Syria, eight terrorists were killed in retaliatory fire," the General Staff wrote on Twitter.
Ankara Since has been conducting an "Olive Branch" operation in Syria's north-western city of Afrin that is situated not far from the border with Turkey since January 20.
READ MORE: Erdogan: Syrian Forces Tried to Enter Afrin, Retreated After Turkey's Shelling
The operation came as a response to the US announcement that it had been training a 30,000-strong border security force in Syria, comprised of the Syrian Kurds' People's Protection Units (YPG), which is considered by Turkey to be affiliated with the Kurdistan's Workers' Party (PKK), regarded by Ankara as a terrorist organization.
Damascus has condemned the operation as a violation of Syria's sovereignty.