Clashes erupted between Israeli soldiers and Palestinians in the town of Kafr Qaddum, north of the West Bank.
The soldiers used tear gas and live and plastic bullets to disperse a demonstration against illegal Jewish settlements and Israel's barrier in the occupied West Bank, Murad Ishtivi, a coordinator for the Popular Resistance Committee, told Anadolu Agency.
Tens of Palestinians fell ill after inhaling the tear gas, he said.
International law regards the West Bank, including East Jerusalem al-Quds, as occupied territory and considers all Jewish settlement-building activity there to be illegal.