At least four people were killed overnight following an Israeli airstrike on a tent encampment outside a hospital in Gaza.

Displacement tents outside the Al-Aqsa Martyrs Hospital were hit by a strike from the IDF, which claimed to have been targeting Hamas operatives working from a "command and control complex" inside the hospital. It has yet to supply evidence to back up this claim.

Images circulating on social media showed the aftermath of the strike, with videos appearing to show patients being burned alive.

As of Monday morning four were confirmed dead with 70 injured, but that tally was expected to rise.

Another air strike on a school in Nuseirat killed around 20 people, according to two local hospitals.

Israel has ordered the full evacuation of northern Gaza, including Gaza City.

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An estimated 400,000 people remain in the north after a mass evacuation ordered in the war’s opening weeks.

Palestinians fear Israel intends to permanently depopulate the north to establish military bases or settlements there, with many saying they would rather die than leave and not be able to return.

The United Nations says no food has entered northern Gaza since October 1, with the Associated Press reporting that Prime Minister Benjamin Netanyahu was considering a plan put forward by a group of retired generals which would see Palestinians given a week to evacuate from the north, after which it would be declared a military zone and no food or water would be permitted to enter.

The plan would also see Israel occupy the north for a period of time after any ceasefire agreement.

On Sunday a drone attack on an army base in central Israel killed four soldiers and severely wounded seven others, the IDF said.

The Lebanon-based Hezbollah called the attack near Binyamina city retaliation for Israeli strikes on Beirut on Thursday that killed 22 people.

Israel’s national rescue service said the attack wounded 61 people.

With Israel’s advanced air defence systems, it is rare for so many people to be injured by drones or missiles. Hezbollah and Israel have traded fire almost daily in the year since the war in Gaza began, and fighting has escalated.

Hezbollah’s strike came on the day the US announced it would send a new air defence system to Israel to help bolster protection against missiles, along with troops needed to operate it.

As part of its invasion of Southern Lebanon, Israel has been "reminded of its obligations" to protect United Nations peacekeeping forces in the area for each of the last four days.

A statement from the United Nations Interim Force in Lebanon (UNIFIL) on Sunday said: "Early this morning, peacekeepers at a UN position in Ramyah observed three platoons of IDF soldiers crossing the Blue Line into Lebanon.

"At around 4:30 a.m., while peacekeepers were in shelters, two IDF Merkava tanks destroyed the position’s main gate and forcibly entered the position. They requested multiple times that the base turn out its lights.

"The tanks left about 45 minutes later after UNIFIL protested through our liaison mechanism, saying that IDF presence was putting peacekeepers in danger.

"At around 6:40 a.m., peacekeepers at the same position reported the firing of several rounds 100 metres north, which emitted smoke.

"Despite putting on protective masks, fifteen peacekeepers suffered effects, including skin irritation and gastrointestinal reactions, after the smoke entered the camp. The peacekeepers are receiving treatment.

"In addition, yesterday, IDF soldiers stopped a critical UNIFIL logistical movement near Meiss ej Jebel, denying it passage. The critical movement could not be completed.

"For the fourth time in as many days, we remind the IDF and all actors of their obligations to ensure the safety and security of UN personnel and property and to respect the inviolability of UN premises at all times.

"Breaching and entering a UN position is a further flagrant violation of international law and Security Council resolution 1701 (2006). Any deliberate attack on peacekeepers is a grave violation of international humanitarian law and resolution 1701.

"UNIFIL’s mandate provides for its freedom of movement in its area of operations, and any restriction on this is a violation of resolution 1701. We have requested an explanation from the IDF from these shocking violations."