Syrian farmers in northern Idlib province have accused Turkey of taking hundreds of hectares along the borderline as Turkey builds a 'security wall' that would be the second-longest structure in the world, after the Great Wall of China.
The Turkish bulldozers have uprooted more than 5000 olive trees along the border in 200 meters depth, activists said.
Turkey announced in April the completion of a three-metre high fortification along its border with Syria to prevent refugees and smugglers entering the country.
The completed 556-kilometre section is the first phase of a structure that will eventually seal the entire 911-kilometre border between the two countries.
The rest of the wall is due to be completed by the autumn.
Turkey shares a 911-kilometer (566 miles) border with Syria. Ankara is concerned about the Syrian Kurdish YPG militia and has been under pressure from the United States and Europe to seal its porous southern border, according to DW.
Human rights groups have voiced concern the wall will trap Syrian civilians fleeing conflict on the other side of the border at a time Turkey tightens its refugee policy.
Seeking to stem migration to Europe, the EU has remained largely silent about the wall's impact on people seeking asylum.