The Israeli military has continued its "expanded ground operation" into Gaza, with bulldozers clearing paths and troops appearing to take up positions.

Military officials released video appearing to show tanks and bulldozers pushing through the rubble of destroyed buildings.

The footage, which could not be independently verified, also appeared to show ground troops patrolling in the dark.

The Israeli military struck about 300 targets, including Hamas compounds, during the last day, the Israel Defense Forces officials said Tuesday.

"Numerous Hamas terrorists have been eliminated," IDF said. "The IAF struck terrorist targets and infrastructure."

The strikes hit Hamas compounds inside underground tunnels, as well as posts for launching anti-tank missiles and rockets, IDF said.

Israel shared a short video on social media appearing to show explosions at sites throughout Gaza.

The military also said it had hit "Hezbollah terrorist infrastructure including weapons, posts and sites in Lebanon." The video and claims could not be independently verified.

Natalie Raanan, one of two American women released by Hamas on Oct. 20, has returned home to Chicago, the Consulate General of Israel to the Midwest announced Monday.

"I am relieved to see Natalie back home in Chicago. Her family members have been anxiously waiting for her return, and today I am sharing their happiness," Yinam Cohen, consul general of Israel to the Midwest, said in a statement.

"While we're celebrating Natalie's return, we remember the 239 hostages, among them babies, children, women, and the elderly, who are still held by Hamas in Gaza. This week, family members of those still held hostage by Hamas will be in Chicago to share their stories and call for their immediate release," Cohen's statement continued.

Raanan, 18, and her mother, Judith Tai Raanan, 59, were kidnapped by Hamas during the Oct. 7 massacre in Israel. They were held for nearly two weeks before they were released. Two Israeli women were released last week. More than 200 people are still being held hostage by Hamas.

-ABC News' Matt Foster and Danielle Jennings

One million people were pushed from the north of the Gaza Strip towards the south in the last three weeks, according to Philippe Lazzarini, the commissioner general for the United Nations Relief and Works Agency for Palestine Refugees.

This represents half of the population of Gaza, according to Lazzarini.

"I have said many times, and I will say it again, no place is safe in Gaza," he said during a briefing Monday.

Over 670,000 displaced people are currently in overcrowded UNRWA schools and buildings, according to Lazzarini.

-ABC News' Will Gretsky

Doctors Without Borders called for a ceasefire Saturday saying the conflict has reached "a new low in an endless stream of unconscionable violence." The organization, which has been providing medical care to people in Gaza, also condemned world leaders for not calling for a ceasefire.

"The deadly attack outside the gate of Al-Shifa hospital impacting an ambulance is horrendous. This is a lethal attack outside Gaza's main and busiest hospital, where our staff work daily to provide lifesaving medical care. We have repeatedly called for an immediate and total ceasefire, for the protection of healthcare facilities, as well as medics, patients and people who are taking shelter there," Doctors Without Borders said in a statement Saturday.

"This is a new low in an endless stream of unconscionable violence. The repeated strikes on hospitals, ambulances, densely populated areas and refugee camps are disgraceful. How many people have to die before world leaders wake up and call for a ceasefire?" Doctors Without Borders said.

This comes as the Palestinian death toll rises to 9,488 -- including 3,900 children and 3,509 women -- and 24,158 Palestinians were injured, according to the Hamas-run Gaza Health Ministry.

One physician described seeing an ambulance hit outside Al-Shifa hospital.

"We were standing inside the hospital gate when the ambulance was directly hit in front of us. There were bloody bodies everywhere. Many were killed immediately, while we rushed others to the operating room for emergency care," Dr. Obaid, a Doctors Without Borders doctor at Al Shifa hospital, said.

The Israel Defense Forces claimed its aircraft hit an ambulance that it believes was being used by Hamas and called for civilians to move south for safety.

-ABC News' Cindy Smith and Emma Ogao