Ultra-Orthodox protesters fought police near Tel Aviv on Tuesday hours after Israel's military said it would begin issuing draft notices for men in the religious Jewish community within days.

Historically exempt from compulsory military service, ultra-Orthodox seminary students are being called up as Israel's war in Gaza and potential conflict with Hezbollah on the northern border saps resources and fuels resentment against those who do not have to serve.

United Nations agencies and international aid groups must "come back and do more for the people of Sudan", the head of medical charity Doctors Without Borders (MSF) said on Tuesday.

MSF international president Christos Christou told AFP that after 15 months of brutal conflict in the northeast African country, nearly one in three wounded have been women or children under the age of 10.

Lebanese official media said separate Israeli strikes Tuesday in south Lebanon killed five people including three Syrian children, with Hezbollah announcing rocket fire at Israel in retaliation.

"Three Syrian children" were killed "in an enemy raid that targeted farmland in the village of Umm Toot", the National News Agency (NNA) said.

It also said an "enemy" drone strike had targeted a motorcycle on the Kfar Tebnit road elsewhere in south Lebanon, killing two Syrians.

Israeli police said security forces shot dead a Palestinian in the West Bank Tuesday after he stabbed an officer, while a relative said the man had been pursued by soldiers.

Police said soldiers and border guards were carrying out a "counterterrorism operation" in the town of Al-Bireh near Ramallah when a knife-wielding man ran towards them.

The man "stabbed" one member of the security force and another "responded by shooting, killing the terrorist", police said.

Authorities in Hamas-run Gaza said dozens of Palestinians were killed Tuesday in three separate strikes, as Israel pounded the territory despite renewed US criticism of the high civilian toll.

Gaza civil defence spokesman Mahmud Bassal said the three air strikes killed at least 44 people and wounded dozens within an hour across the war-torn Palestinian territory. Israel confirmed it carried out two of the strikes.

Six people including four Pakistanis were killed and nearly 30 wounded in a shooting near a Shiite mosque in the Omani capital Muscat, officials said Tuesday, a rare attack in the country that was claimed by Islamic State.

Monday's mosque attack came as Shiites this week mark Ashura, an annual day of mourning that commemorates the seventh-century death in battle of Imam Hussein, regarded by the branch as the rightful successor to the Prophet Mohammed.

Israel's deadly strike on Al-Mawasi, one of the bloodiest attacks in more than nine months of war in Gaza, used massive payload bombs provided by the United States, according to weapons experts.

The bombing of the Israeli-declared "safe zone" transformed the tent city on the Mediterranean coast into a charred wasteland, with nearby hospitals overrun with casualties.

According to the health ministry in the Hamas-run territory, the barrage killed at least 92 people and wounded more than 300.

Four people were killed and multiple others wounded in a shooting near a mosque in Oman's capital Muscat, police said Tuesday.

"The Royal Oman Police have responded to a shooting incident that occurred in the vicinity of a mosque in the Al-Wadi Al-Kabir area," police said in a statement.

The force gave an initial toll of four killed and "several others" wounded at the mosque in eastern Muscat.

Such an attack is rare in the Sultanate, which has regularly played the role of mediator in regional conflicts.

Syrians in government-held areas were voting Monday in their fourth parliamentary election since civil war erupted in 2011, a poll expected to keep President Bashar al-Assad's ruling Baath party in power.

The election came amid overtures from Ankara towards Damascus, after ties were severed following the start of Syria's war in 2011, with Assad saying he was open to meeting Turkish President Recep Tayyip Erdogan depending on the encounter's "content".

UK police on Monday arrested two pro-Palestinian demonstrators after a protest at Britain's Cenotaph war memorial in central London.

A Palestinian flag was laid in front of the Cenotaph and "180,000 killed" spray-painted on the ground in front of the monument, photos and video footage showed.

The Cenotaph is the focus every year of of national events to commemorate Britain's war dead.