Human Rights Watch condemned on Saturday Ankara for using "lethal force" against Syrian refugees attempting to cross over to Turkey to flee the violence in their war-torn country.
It came as Turkey's military pushed ahead with a cross-border offensive into an enclave in northern Syria to rout a Syrian Kurdish militia group it says is linked to outlawed Kurdish rebels in Turkey.
Meanwhile, seven civilians have been killed in mortar fire on the Turkish side of the border that Ankara blames on the YPG.
According to their accounts, 10 people were killed, including a child.
"The Turkish government should issue standard instructions to the border guards at all crossing points that lethal force must not be used against asylum seekers and no asylum seeker is to be mistreated, but should be given access to medical aid when required", HRW said. A ninth suspect was killed during the operation to round up the group, they said.
Asylum seekers also must travel a risky terrain "littered with landmines, steep climbs, narrow paths along ravines, and valleys".
Signs and banners included portraits of Abdullah Ocalan, leader of the Kurdistan Workers Party (PKK), who has been detained since 1999 on Imrali Prison Island off Istanbul. "We have given the necessary response instantly, and we continue to do so", Yildirim said.
Turkey launched Operation Olive Branch on January 20 to clear YPG and ISIL militants from Afrin in northwestern Syria.
On Jan. 20, the Turkish Armed Forces, together with the Free Syrian Army, launched the Operation Olive Branch in Afrin, Syria.
Turkey has long fought Kurdish unrest in the southeastern part of the country.