Hundreds of Palestinians clashed on Friday with Israeli security forces across the West Bank and Gaza, in a gesture of support for a hunger strike of Palestinians imprisoned in Israel.

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Eleven Palestinians were wounded by gunfire in the southern Gaza Strip, two of them seriously, the Palestinian Health Ministry said. In the West Bank, dozens were wounded by tear gas and rubber bullets, the Palestinian Red Crescent said, with the most violent clashes taking place around Nablus in the villages of Beita and Bait Djan.

Open gallery view Palestinian protesters take cover during clashes with Israeli troops following a protest in support of Palestinian prisoners on hunger strike in Israeli jails, in the West Bank village of Beita Credit: MOHAMAD TOROKMAN/REUTERS

Open gallery view Palestinian demonstrators run for cover during clashes with Israeli forces following a protest in support of Palestinian prisoners on hunger strike in Israeli jails Credit: JAAFAR ASHTIYEH/AFP

Open gallery view Israeli soldiers detain a Palestinian during clashes following a protest in support of Palestinian prisoners on hunger strike in Israeli jails, in the West Bank town of Bethlehem May 19, 2017. Credit: AMMAR AWAD/REUTERS

At the same time, in the village of Abud northwest of Ramallah, about 10 Palestinians were wounded, one of them by live fire. An Israeli police officer and a soldier were wounded by stones lobbed at Israeli forces in the same place.

About 20 Palestinians were arrested in the clashes, five of which after throwing stones at the Rachel Tomb's enclave in Bethlehem, the IDF said. The others were arrested in clashes in Hebron and Abud.

Clashes developed all along the Gaza border, where hundreds of Palestinians torched tires and threw stones at Israeli forces, which responded with tear gas and stun grenades.

Two Palestinian were seriously wounded and nine others lightly wounded by live fire near Khan Younis in the south, the Palestinian Health Ministry said. Israel Police confirmed that live fire was used in Gaza but identified only four wounded Palestinians, shot by police snipers after drawing near Israeli territory.

Open gallery view A Palestinian protester uses a sling to hurl stones at Israeli troops near the border between Israel and Central Gaza Strip May 19, 2017. Credit: IBRAHEEM ABU MUSTAFA/REUTERS

Open gallery view A Palestinian protester hurls a teargas canister back at Israeli soldiers during clashes following a protest against the blockade on Gaza, near the border fence east of Gaza City on May 19, 2017. Credit: MOHAMMED ABED/AFP