Israeli air strikes killed 23 Syrian and foreign fighters in Syria Thursday, a monitor said, the latest in a spate of raids Israel has said targeted an Iranian presence on its doorstep.

A Palestinian wounded in clashes with Israeli troops in the West Bank town of Jenin has died of his injuries, bringing to two the number killed on Thursday, the Palestinian health ministry said.

Seven people were shot dead on Wednesday in Iraq's shrine city of Najaf after supporters of powerful cleric Moqtada Sadr raided an anti-government protest camp, medics told AFP.

All the dead suffered bullet wounds to the head or chest, the medics said, and dozens more were wounded. 

A Palestinian teenager was shot dead by Israeli troops on Wednesday in the West Bank city of Hebron, the first Palestinian killed in protests against U.S. President Donald Trump's Middle East peace plan.

President Mahmoud Abbas will travel to the United Nations next week to push for a Security Council resolution condemning U.S. President Donald Trump's peace proposals, Palestinian officials said Wednesday.

Syrian regime forces on Wednesday penetrated the strategic town of Saraqeb in Idlib province, a war monitor said.

"Regime forces have entered Saraqeb, after hundreds of jihadists and allied forces retreated north of the town," Rami Abdel Rahman, head of the Syrian Observatory for Human Rights, told AFP.

Eight humanitarian aid organizations on Wednesday called for an immediate ceasefire in northwestern Syria, where hostilities have displaced hundreds of thousands of people in the past two months.

The Syrian regime -- backed by Russia -- has carried out an intense air offensive against jihadists and rebels, enabling it to reclaim several towns and villages in the Idlib region despite a freshly-brokered truce.

Iran's supreme leader Ayatollah Ali Khamenei predicted Wednesday that Donald Trump would outlive the U.S. president's controversial proposals for Israeli-Palestinian peace. 

Syrian regime forces Wednesday pressed on with their offensive in the northwest that has displaced half a million people, despite heightened tensions with Turkey.

Turkish President Recep Tayyip Erdogan urged Syria on Wednesday to withdraw its troops from its military observation posts in northwestern Idlib province where clashes have intensified in recent days.