Israeli troops shot dead a 17-year-old Palestinian boy in the occupied West Bank during a stone-throwing incident Monday near the northern city of Nablus, sources on both sides said.

The army said soldiers had fired warning shots before opening fire on a group throwing stones at Israeli civilians.

Palestinian security officials said the stones had been thrown at military vehicles.

The teenager was killed near the Tapuah settlement, south of Nablus, and a 19-year-old was wounded in the same incident, they added.

Around 20 Palestinians have been killed by the army in the West Bank since June, according to an AFP tally.