Syrian Kurdish fighters carried out an attack early Monday in northern Syria, killing at least five members of Turkey-backed Syrian opposition forces, activists said.

The attack south of the northern town of Afrin, which is held by the Turkey-backed forces, took place shortly after midnight on Sunday, according to the Britain-based Syrian Observatory for Human Rights.

Israeli troops shot and killed a Palestinian man during new unrest in the West Bank Monday, as a wave of violence in the occupied territory showed no signs of slowing.

The Israeli military said troops stopped a motorist in Deir Nidham, a town west of Ramallah, to question him. It said the man got out of his car, threw a grenade and fired shots toward soldiers, who then opened fire.

A U.S. drone strike killed an Islamic State group leader in Syria hours after the same MQ-9 Reaper drones were harassed by Russian military jets over the western part of the country, according to the Defense Department.

Three Reapers had been flying overhead searching for the militant on Friday, a U.S. defense official said, when they were harassed for about two hours by Russian aircraft. Shortly after that, the drones struck and killed Usamah al-Muhajir, who was riding a motorcycle in the Aleppo region, said the official, who was not authorized to publicly discuss the matter and spoke on condition of anonymity to describe details of the military operation.

The delivery of humanitarian aid to Syria's rebel-held northwest from neighboring Turkey is virtually certain to get a green light to continue from the U.N. Security Council on Monday — but the big question is for how long.

The council's current authorization for aid deliveries through the Bab al-Hawa crossing is set to expire Monday, but the council has two rival extension resolutions before it to vote on.

Russian fighter jets have "harassed" American drones over Syria for the third day in a row this week, the U.S. military said.

Tension between Russian and U.S. troops is not uncommon in Syria as both countries conduct patrols on the ground as well as overflights. Syria's 12-year conflict has left half a million people dead and over 1 million wounded.

In a rare condemnation of Israel, the U.N. chief has denounced the country's excessive use of force in its largest military operation in two decades targeting a refugee camp in the West Bank.

U.N. Secretary-General Antonio Guterres, clearly angered by the impact of the Israeli attack on the Jenin refugee camp, said the operation had left over 100 civilians injured, forced thousands to flee, damaged schools and hospitals and disrupted water and electricity networks.

Human Rights Watch on Friday urged Tunisia to put an end to what it called the "collective expulsions" of Black African migrants to a desert area near the Libyan border.

Hundreds of migrants from sub-Saharan Africa have been left stranded in dire conditions in the south of Tunisia since being driven out of the port city of Sfax in the past week.

Russian fighter jets flew dangerously close to several U.S. drone aircraft over Syria again Thursday, setting off flares and forcing the MQ-9 Reapers to take evasive maneuvers, the Air Force said.

It was the second time in 24 hours that Russia has harassed U.S. drones there.

Iraq has opened an investigation into the suspected kidnapping of an Israeli-Russian academic after her disappearance in Baghdad, a government spokesman said.

Elizabeth Tsurkov, a doctoral student at Princeton University and fellow at the New Lines Institute for Strategy and Policy, has been missing in Iraq for more than three months.

Israeli forces killed two Palestinians in a flashpoint city in the occupied West Bank Friday, days after Israel concluded a major two-day offensive meant to crack down on militants.

The persistent violence raised questions about the effectiveness of the raid earlier this week, which saw Israel launch rare airstrikes on militant targets, deploy hundreds of troops and cause widespread damage to roads, homes and businesses. As a result of the raid, 12 Palestinians and one Israeli soldier were killed.