Palestinian militants battled Israeli forces in devastated northern Gaza and launched a barrage of rockets from farther south Tuesday in a show of force more than 100 days into Israel's massive air and ground campaign against the tiny coastal enclave.

Palestinians walk through destruction by the Israeli bombardment in the Nusseirat refugee camp in Gaza Strip, Tuesday, Jan. 16, 2024. (AP Photo/Adel Hana)

The fighting in the north, which was the first target of Israel's offensive and where entire neighborhoods have been pulverized, showed how far Israel is from achieving its goals of dismantling Hamas and returning scores of hostages captured in the Oct. 7 attack that sparked the war.

In other developments, France and Qatar, the Persian Gulf nation that helped mediate a previous cease-fire, said late Tuesday that they had brokered a deal between Israel and Hamas to deliver medicine to Israeli hostages in Gaza, as well as additional aid to Palestinians in the besieged territory.

France said it had been working since October on the deal, which will provide three months’ worth of medication for 45 hostages with chronic illnesses, as well as other medicines and vitamins. The medicines are expected to enter Gaza from Egypt on Wednesday.

It was the first known agreement between the warring sides since a weeklong truce in November.

Meanwhile, Gaza's humanitarian crisis is worsening, with 85% of the territory's 2.3 million Palestinians having fled their homes and United Nations agencies warning of mass starvation and disease. The conflict threatens to widen after the United States and Israel traded strikes with Iranian-backed groups across the region.

A Palestinian walks through the destruction by the Israeli bombardment in the Nusseirat refugee camp in Gaza Strip, Tuesday, Jan. 16, 2024. (AP Photo/Adel Hana)

Israel has vowed to crush Hamas’ military and governing capabilities to ensure that the Oct. 7 attack is never repeated. Militants stormed into Israel from Gaza that day, killing some 1,200 people, mostly civilians, and taking around 250 people hostage. With strong diplomatic and military support from the United States, Israel has resisted international calls for a cease-fire.

Nearly half of the hostages were released during the truce, but more than 100 remain in captivity. Hamas has said it will not release any others until Israel ends the war.

STRIKES AND COUNTERSTRIKES ACROSS THE REGION

The longer the war goes on, the more it threatens to ignite other fronts across the region.

Iran fired missiles late Monday at what it said were Israeli “spy headquarters” in an upscale neighborhood near the sprawling U.S. Consulate in Irbil, the seat of Iraq’s northern semi-autonomous Kurdish region. Iraq and the U.S. condemned the strikes, which killed several civilians, and Baghdad recalled its ambassador to Iran in protest.

Iranian-backed groups in Iraq and Syria have carried out dozens of attacks on bases housing U.S. forces, and a U.S. airstrike in Baghdad killed an Iranian-backed militia leader in early January.

Elsewhere, Iranian-backed Houthi rebels in Yemen have resumed their attacks on container ships in the Red Sea following a wave of U.S.-led strikes last week. The U.S. military carried out another strike Tuesday. Separately, it said two Navy SEALS are missing after a raid last week on a ship carrying Iranian-made missile parts and weapons bound for Yemen.

Israel and Lebanon's Hezbollah militant group have exchanged fire along the border nearly every day since the war in Gaza began. The strikes and counterstrikes have grown more severe since an Israeli strike killed Hamas' deputy political leader in Beirut this month, raising fears of a repeat of the 2006 war.

MILITANTS KEEP FIGHTING IN GAZA'S HARD-HIT NORTH

In Gaza, the Israeli military said its forces located some 100 rocket installations and 60 ready-to-use rockets in the area of Beit Lahiya, a town on the territory's northern edge. Israeli forces killed dozens of militants during the operation, the military said, without providing evidence.

Mahmoud Abdel-Ghani, who lives in Beit Lahiya, said Israeli airstrikes hit several buildings on the eastern side of the town.

Hundreds of thousands of people fled northern Gaza, including Gaza City, following Israeli evacuation orders in October. Israel shut off water to the north in the opening days of the war, and hardly any aid has been allowed into the area, even as tens of thousands of people have remained there.

Residents reached by phone Tuesday described the heaviest fighting in weeks in Gaza City.

Palestinians walk through destruction by the Israeli bombardment in the Nusseirat refugee camp in Gaza Strip, Tuesday, Jan. 16, 2024. (AP Photo/Adel Hana)

“The bombing never stopped,” said Faris Abu Abbas, who lives in the Tel al-Hawa neighborhood. “The resistance is here and didn’t leave.”

Ayoub Saad, who lives near Shifa Hospital downtown, said he heard gunfire and shelling overnight and into Tuesday and saw dead and wounded people being brought to the hospital on carts.

After weeks of heavy fighting across northern Gaza, Israeli officials said at the start of the year that they were scaling back operations there. The focus shifted to the southern city of Khan Younis and built-up refugee camps in central Gaza dating back to the 1948 war surrounding Israel's creation.

But there too, they have encountered heavy resistance. The military said at least 25 rockets were fired into Israel on Tuesday, damaging a store in one of the strongest bombardments in more than a week. Israel's Channel 12 television said the rockets were launched from the Bureij camp in central Gaza.

A SPIRALING HUMANITARIAN CRISIS

Gaza’s Health Ministry said Tuesday that the bodies of 158 people killed in Israeli strikes have been brought to hospitals in the past 24 hours, bringing the war's overall death toll to 24,285. The ministry does not differentiate between civilian and combatant deaths but says around two-thirds of those killed were women and children.

Senior U.N. officials warned Monday that Gaza faces widespread famine and disease if more aid is not allowed in. While they did not directly blame Israel, they said aid delivery is hobbled by the opening of too few border crossings, a slow vetting process, and continuing fighting throughout the territory — all of which is largely under Israel's control.

U.N. Secretary-General Antonio Guterres said U.N. agencies and their partners “cannot effectively deliver humanitarian aid while Gaza is under such heavy, widespread and unrelenting bombardment.” At least 152 U.N. staffers have been killed in Gaza since the start of the war.

Israeli officials say they have placed no limits on humanitarian aid and have called on the U.N. to provide more workers and trucks to accelerate delivery.

Israel completely sealed off Gaza after Hamas’ Oct. 7 attack and only relented under U.S. pressure. The United States, as well as the United Nations, have continued to push Israel to alleviate the flow of aid.

Israel blames the high civilian death toll on Hamas because it fights in dense residential areas. Israel says its forces have killed roughly 8,000 militants, without providing evidence, and that 190 of its own soldiers have been killed in the Gaza offensive.

Fighting across Gaza as Israel drops leaflets seeking its hostages.

Israeli soldiers operate in Gaza Strip

Israel pounded targets across the Gaza Strip on Saturday while its planes dropped leaflets on the southern area of Rafah urging Palestinians seeking refuge there to help locate hostages held by Hamas, residents said.

Palestinian fighters battled tanks trying to push back into the eastern suburbs of the Jabalia area in northern Gaza, where Israel had started pulling out troops and shifting to smaller-scale operations, residents and militants said.

The Israeli military said aircraft struck militant squads trying to plant explosives near troops and fire missiles at tanks in northern Gaza and said it was striking targets throughout Gaza.

In the southern area of Khan Younis, where Israel says it has expanded its operations against Hamas, witnesses said tanks shelled areas around Nasser Hospital overnight, describing the bombardment as the most intense in many days.

Nasser is now Gaza's largest functioning hospital. Israel says Hamas fighters operate from in and around hospitals, including Nasser, which Hamas and medical staff deny.

The Israeli military said that in Khan Younis it raided a military compound, neutralized ready-to-use rocket launchers and found explosives stashed underground while an aircraft struck two gunmen there. In north Gaza, troops raided a weapons site, and the military said it confiscated enough chemical materials and gear to manufacture 800 rockets.

With nightfall, residents said Israeli planes and tanks intensified their bombardment in Jabalia on the northern edge of Gaza, and in Khan Younis and Rafah in the south.

Five people were killed when an Israeli air strike hit a house in Jabalia, health officials said. In Rafah, medics said four people were killed and others were wounded when an Israeli air strike hit a car in the middle of Rafah city. The Israeli military said it was checking the report.

The Gaza health ministry said Israeli strikes had killed 165 people and wounded 280 others in the past 24 hours, one of the biggest death tolls in a single day so far in 2024.

It did not distinguish between combatants and non-combatants in its daily toll, but most of the 24,927 Palestinians killed since the Oct. 7 war began are civilians, health officials say.

Fighting has not been confined to Gaza. An Israeli strike on Syria's capital Damascus on Saturday killed five members of Iran's Revolutionary Guards and an unspecified number of Syrian troops, Iran said.

Israel has vowed to annihilate Hamas in Gaza after its fighters burst into Israel on Oct 7., and rampaged through Israeli towns and bases killing 1,200 people, most of them civilians, dragging 253 hostages back to the enclave.

Israel says its forces have so far killed around 9,000 militants. Israeli Prime Minister Benjamin Netanyahu on Thursday vowed to press on with the war until Hamas is defeated and the remaining hostages released.

In more than 100 days of war, Israel's air, land and sea offensive has laid much of Gaza to waste, displacing most of the 2.3 million population, many forced to move repeatedly and seek refuge in tents that do little to protect them from the elements and disease, according to the United Nations.

In Rafah, where over a million Palestinians are taking shelter, Israel dropped leaflets showing photos of 33 hostages, their names written in Arabic, urging the displaced to make contact. "Do you want to return home? Please make the call if you recognise one of them," the leaflets read.

"They are asking people's help because they are unable to get to their hostages because of the resistance," said Abu Ali, one north Gaza resident. "End the war, Netanyahu, and get your people back," he told Reuters.

More than 100 of the hostages seized by Hamas were freed during a short-lived November truce. Israel says 132 remain in Gaza, 27 of whom have been killed in captivity.

In Israel, families of hostages camped outside Netanyahu's residence in the coastal city Caesarea.

"He needs to choose one (deal) and end the hostage saga," said Eli Stivi, whose son Idan is being held incommunicado in Gaza.