Turkish army members have been stationed in Northern Syria in order to create a YPG- free zone along the lines of the border. The YPG group is considered a branch of the Syrian terrorist group, Kurdistan Workers’ Party (PKK), according to Turkey. PKK/YPG terrorists, who opened fire into the Operation Peace Spring zone to disrupt peace and security, were neutralized by fire support vehicles” according to a statement by Turkish authorities.
Source: http://www.xinhuanet.com/english/2020-10/26/c_139468684.htm