The United Nations and aid agencies operating in Syria say thousands of people are fleeing the fighting as Turkey’s military campaign continues.
Warning: This report contains some disturbing images.
So far at least 15 civilians have been killed on both sides of the border.
The Turkish defence ministry says its forces have killed more than 200 YPG fighters since the operation began.
Al Jazeera’s Charles Stratford reports from the border between Turkey and Syria.