Israel‘s army said it launched air strikes on Gaza Monday, killing a senior Hamas commander, in response to rockets fired by the Islamist movement amid spiralling violence sparked by unrest at Jerusalem’s Al-Aqsa mosque compound.

“We have started, and I repeat started, to attack military targets in Gaza,” Israeli army spokesman Jonathan Conricus told reporters.

He said Israeli forces had targeted “a Hamas military operative,” while Hamas sources in Gaza confirmed to AFP that one of their commanders had been killed.

Tensions have flared since Israeli riot police clashed with Palestinian worshippers on the last Friday of the Muslim fasting month of Ramadan in the city’s worst disturbances since 2017.

Nightly unrest since then at the Al-Aqsa compound — Islam’s third holiest site — has left hundreds of Palestinians wounded, drawn calls for de-escalation from the international community and sharp rebukes from across the Muslim world.

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Hamas, which controls the Gaza Strip, Monday warned Israel to withdraw all its forces from the mosque compound and the east Jerusalem district of Sheikh Jarrah, where looming evictions of Palestinian families have fuelled angry protests.

Sirens wailed across Jerusalem just after the 1500 GMT deadline set by Hamas as people in Jerusalem, including lawmakers in the Knesset legislature, evacuated into bunkers, amid warnings over loudspeaker in Hebrew and English.

The Israeli army said seven rockets were fired from the coastal strip into Israel, two of which were intercepted by Israel’s Iron Dome anti missile defence system and three of which fell onto vacant lands.

A spokesman for Hamas’ armed wing the Qassam Brigades said that “a volley of rockets was fired towards the enemy in occupied Jerusalem in response to its crimes and aggression on the holy city and repression of its residents in Sheikh Jarrah and the Al-Aqsa mosque”.

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“This is a message that the enemy must understand well: if you respond we will respond, and if you escalate we will escalate.”

One Gaza rocket impacted at Beit Shemesh south of Jerusalem, but there were no immediate reports of casualties.

A house in Beit Nekofa, about 10 kilometres (six miles) west of central Jerusalem, was also damaged by rocket fire, AFP TV reported.

The Israeli army said on Twitter that, separate to the rockets, “as a result of an anti-tank missile fired from Gaza, an Israeli civilian in a nearby vehicle was lightly injured” in the Gaza border area.

Fears of further chaos in the Old City had temporarily eased when Israeli organisers of a march to celebrate the Jewish state’s 1967 capture of east Jerusalem cancelled the event.

But then came the Hamas warning, followed by the rockets.

“An alarm has just been sounded in Jerusalem. Police forces have begun evacuating hundreds of people” gathered at the Wailing Wall to safer locations, police said, later adding that the evacuation was completed.

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Hamas has fired several rockets towards Israel in recent days, some intercepted by the Iron Dome system, while militants in Gaza have deployed incendiary balloons that have sparked dozens of fires in Israeli territory.

In Monday’s Al-Aqsa clashes, as during the previous nights since Friday, Palestinians hurled rocks at Israeli officers in riot gear who fired rubber bullets, stun grenades and tear gas.

Loud booms and angry screams echoed from the ancient stone walls of the compound, where Palestinians built makeshift barricades and the ground was littered with rocks, stun grenade fragments and other debris.

The Palestinian Red Crescent put the toll from Monday’s clashes at 305 injured, including more than 200 who were hospitalised, five of them in critical condition.

The Israeli police reported nine injuries in their ranks.

Outside the mosque — where some ornamental windows had been smashed — an installation made from empty shells of stun grenades and tear gas canisters depicted the Dome of the Rock with the Arabic slogan “You Shall Not Pass”.

The violence since Friday has been fuelled by a long-running bid by Jewish settlers to evict several Palestinian families from their nearby Sheikh Jarrah neighbourhood.

A Supreme Court hearing on a Palestinian appeal in the case originally set for Monday was pushed back by the justice ministry due to the tensions.

Despite mounting international condemnation, Prime Minister Benjamin Netanyahu voiced support for the Israeli police’s “just struggle”, praising the “steadfastness that the Israeli police and our security forces are currently displaying”.

The UN Security Council held an informal meeting at Tunisia’s request later Monday on the unrest, but without agreeing on a joint statement.

Palestinian president Mahmud Abbas condemned what he called Israel’s “barbaric aggression.”