Israel-Gaza updates: IDF says it exposed Hamas tunnel under Shifa Hospital

One of two humanitarian corridors that the Israeli military has temporarily opened in the Gaza Strip on Tuesday is less than 1.5 miles long, according to an executive officer of an Israeli battalion in charge of the route.

The officer told ABC News that the corridor is a 2-kilometer stretch of Salah al-Din, the main highway connecting the north and south of Gaza. He said his troops have come under sniper fire and that "there were casualties."

The Israeli military has distributed leaflets directing civilians in the north to routes that take them to the corridors, offering safe passage to evacuate to the south of the war-torn enclave within a designated window of time on Tuesday.

-ABC News' Matt Gutman, Becky Perlow and Juan Rentaria

The Israel Defense Forces announced Tuesday morning that it "is in the process of coordinating the transfer of incubators from a hospital in Israel to Gaza."

"We are doing everything we can to minimize harm to civilians, assist in evacuation, and facilitate the transfer of medical supplies and food," the IDF wrote in a post on X, the social media platform formerly known as Twitter. "Our war is not with the people of Gaza."

The IDF also shared a video message from Shani Sasson, spokesperson for COGAT, the Israeli defense body that handles Palestinian civil affairs.

"The pedantic ward at Shifa Hospital in Gaza City needs assistance. Israel is ready to assist," Sasson said in the video. "We made a formal offer to health officials in Gaza to transfer incubators into Gaza Strip to assist the paediatric ward of Shifa Hospital. Extensive offers are underway to insure that these incubators, right here behind me, can reach babies in Gaza without delay. Our war is against Hamas and not the people of Gaza."

It was unknown whether the process to transfer incubators was underway and there was no confirmation of Israel's offer from health officials or medical staff in the Gaza Strip. It was also unclear how the incubators would be powered at Gaza's hospitals with little to no electricity and fuel.

The announcement came amid worldwide calls to save dozens of premature newborn babies at Gaza's second-largest hospital.

Al-Shifa Hospital in Gaza City had been struggling to run with limited fuel for days as doctors warn of its imminent collapse. On Friday, fighting in the area intensified and a strike hit the courtyard outside the hospital.

Three of the 39 babies that were being cared for in Al-Shifa's neonatal unit have died since their incubators stopped working on Saturday, according to the hospital's head of plastic surgery, Dr. Ahmed Mokhallalati. The hospital staff has been trying their best to look after them, swaddling them and using what power is left to heat the room they are in.

In recent days, several hospitals across Gaza said they have been under attack as heavy fighting occurs between Israeli troops and the militant group that rules the enclave, Hamas. The IDF alleges that Hamas has placed its command centers in tunnels under hospitals in Gaza and is deliberately sheltering behind Palestinian civilians -- claims which the group denies.

-ABC News' Zoe Magee, Jordana Miller and Morgan Winsor

The Israel Defense Forces announced Tuesday the temporary opening of evacuation corridors in the war-torn Gaza Strip to allow more people in the north of the Hamas-run enclave to move south.

A "safe passage" will be open "for humanitarian purposes" via the Salah al-Din highway toward the area south of Wadi Gaza on Tuesday between 9 a.m. and 4 p.m. local time, according to the IDF.

The IDF said it will also temporarily suspend military activities "for humanitarian purposes" in the neighborhoods of Al-Daraj and Al-Tuffah on Tuesday between 10 a.m. and 2 p.m. local time.

"Please, for your safety, join the hundreds of thousands of residents who have moved south in recent days," the IDF said in a statement. "We encourage you to seize the time and move south!"

The IDF also urged Gaza residents to "not surrender to Hamas," alleging that the militant group "has lost control over the northern Gaza Strip area and is trying to do everything it can to prevent you from moving south and protect yourselves."

-ABC News' Jordana Miller

Israeli military officials brought several journalists, including ABC's Matt Gutman, into the Al-Rantisi Hospital inside Gaza, which had been hit with artillery.

The hospital, Gaza's sole children's hospital, was allegedly a Hamas command center, Israel’s chief military spokesperson Daniel Hagari, who led the tour, claimed.

The hospital was surrounded by Israeli tanks from Thursday into Friday, the director of Al-Rantisi Children’s Hospital said on Friday.

Inside the basement of the hospital, which officials said has been evacuated, were abandoned AK-47s, grenades and what Hagari said were suicide vests. In another room of the basement was a chair where Hagari claims a hostage was kept.

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Battles rage around Gaza hospitals

Israel says hospitals in Gaza are being used to shield Hamas fighters.

The spokesperson said the Israeli military was set to detonate the grenades and vests they claim they found inside and a forensic team was going to probe the hospital for more evidence.

The tour came after the hospital's resources deteriorated due to nearby attacks according to UNICEF.

The hospital’s operations almost ceased between Thursday and Friday, according to UNICEF.

By Friday, Al-Rantisi Hospital had only a small generator powering the intensive care and neonatal intensive care units, UNICEF said.

-ABC News' Matt Gutman