Palestinian rioters use slings to hurl stones at Israeli troops during a protest in the village of Ras Karkar, near Ramallah in the West Bank. Aug. 31, 2018. Photo: Reuters / Mohamad Torokman.

Israeli security forces wounded dozens of Palestinians taking part in riots in the West Bank and along the Gaza Strip border on Friday, witnesses and medical officials said.

At the West Bank village of Ras Karkar, hundreds of Palestinians threw stones at troops, who responded with tear gas and rubber bullets, injuring at least a dozen people.

Israeli authorities had no immediate comment.

In Islamist Hamas-controlled Gaza, thousands of Palestinian massed near the border fence as part of weekly demonstrations launched at the end of March.

Gaza medics said 180 Palestinians were wounded, a third of them from live fire.

The Israeli army said troops opened fire to disperse Palestinians who rolled burning tires at the fence, posing a breach threat, and, in one case, threw a grenade across it.