TULKAREM, West Bank >> The Israeli military said it killed five more West Bank militants, including a local commander, as it pressed ahead Thursday with its deadliest operation in the occupied territory since the start of the war in Gaza.

Israel says the raids across the northern West Bank — which have killed a total of 16 people, nearly all militants, since late Tuesday — are aimed at preventing attacks. The Palestinians see them as a widening of the war in Gaza and an effort to perpetuate Israel’s decades-long military rule over the territory.

The raids drew alarm from the United Nations and neighboring Jordan, as well as from British and French leaders, who stressed the urgency of cease-fire in Gaza after nearly 11 months of fighting between Israel and Hamas.

Medics at al-Awda Hospital in central Gaza said Thursday eight Palestinians were killed and 20 wounded from Israeli strikes on the crowded Nuseirat refugee camp.

Beginning Sunday, Israel will pause some military operations in Gaza to allow health workers to begin administering polio vaccines to some 650,000 Palestinian children, the U.N. World Health Organization said Thursday. A case was discovered earlier this month for the first time in 25 years.

In the West Bank, the Islamic Jihad militant group confirmed that Mohammed Jaber, known as Abu Shujaa, was killed during a raid in the city of Tulkarem. He became a hero for many Palestinians earlier in the year when he was reported killed in an Israeli operation, only to make a surprise appearance at the funeral of other militants, where he was hoisted onto the shoulders of a cheering crowd.

Israel said he was killed Thursday along with four other militants in a shootout after the five had hidden inside a mosque. It said Abu Shujaa was linked to numerous attacks on Israelis, including a deadly shooting in June, and was planning more.

Israel’s search-and-arrest raids continued for hours Thursday, including the city of Jenin.

Firefights also erupted in Fara’a, a Palestinian urban refugee camp in the foothills of the Jordan Valley, where the Israeli army said it struck and killed a group of militants traveling in a car.

Their militant affiliations were not immediately clear.

The army also said it uncovered caches of weapons, explosive devices and other military equipment inside a mosque in Fara’a and arrested another militant in Tulkarem, where a member of Israel’s paramilitary Border Police was lightly wounded.

Israel’s latest operation in the West Bank began late Tuesday in several locations, and Hamas confirmed 10 of its fighters were killed. The Palestinian Health Ministry reported an 11th death on Wednesday, without saying whether he was a fighter or a civilian.

The U.N. secretary-general, António Guterres, called for an immediate halt to the raids, asking Israel’s government to comply with its obligations under international law and to take measures to protect civilians.