Many Palestinians were seeking shelter on Wednesday after fleeing their homes in southern Gaza and complained of water shortages as Israel pressed on with its military offensive in the densely populated enclave.
Israeli forces carried out new military strikes in the southern city of Rafah amid fierce fighting with Palestinian militants overnight, residents said. At least 12 people were killed in new strikes in central and northern Gaza, health officials said.
Israel's leaders have said they are winding down the phase of intense fighting against Hamas, the Islamist group that has governed Gaza since 2007, and will soon shift to more targeted operations in the nearly nine-month-old war in Gaza.
But fighting continued overnight in two locations at the center of Rafah, where tanks have seized several districts and advanced further west and north of the city in recent days, and concerns about the plight of hundreds of thousands of displaced people are growing.
The Israeli military said its forces had continued targeted, intelligence-based operations in Rafah, dismantled several military sites and killed Palestinian militants.
Hamas' armed wing said it had shelled two Israeli tanks in a neighborhood west of Rafah and fired mortar bombs at Israeli forces attacking Shejaia, an eastern suburb of Gaza City in the center of the enclave.
The armed wing of Islamic Jihad, an allied group, said it had shelled an Israeli military bulldozer in Rafah, and fired on Israeli army positions east of Shejaia.
In Maghazi refugee camp in central Gaza, two Israeli airstrikes killed five Palestinians, health officials said. In Shejaia an airstrike killed four and wounded 17, medics said.
Another airstrike hit a car in the southern city of Deir Al-Balah, killing three people, health officials said.
Deir Al-Balah is crowded with hundreds of thousands of Palestinians forced to flee homes elsewhere in Gaza, and residents complain of acute shortages of drinking water and inflated prices for basic foodstuff.
"There is no clean water to drink. We are forced to buy salty or unclean water at a high price," said Shaban, 47, a father of five.
"Most of the displaced suffer from abdominal pains and diseases such as hepatitis because of the unhealthy water, the lack of decent food and the pollution as many live near sewage pools," he told Reuters via a chat app.
The war in Gaza began when Hamas burst into southern Israel on Oct. 7, killed about 1,200 people and seized around 250 civilians and soldiers who they took back in Gaza, according to Israeli tallies.
The offensive launched by Israel in retaliation to try to eliminate Hamas has killed nearly 38,000 people, according to the Gaza health ministry, and has left the heavily built-up coastal enclave in ruins. Internationally mediated talks have failed so far to secure a lasting ceasefire.
While the United States has maintained its strong support for Israel throughout the war, President Joe Biden has on some occasions expressed concerns about Israel's conduct.
A White House official said on Tuesday Biden was expected to meet Israeli Prime Minister Benjamin Netanyahu in late July when the Israeli leader visits to address the U.S. Congress.
The Gaza health ministry said an Israeli airstrike on a house in the southern city of Khan Younis had killed Hassan Hamdan, head of the burns and plastic surgery department at Nasser Medical Complex, along with all his family members.
Israel's army did not comment on the ministry's statement and Reuters was unable immediately to verify it.
Khan Younis residents said a lack of designated shelters meant many families had slept on the road because they could not find tents after Israeli army evacuation orders led to the displacement of thousands of people living east of the city.
The last functioning hospital in the area, the Gaza European Hospital, which had housed displaced families as well as patients, was also evacuated.
"We were told to evacuate the European Hospital. We came to Nasser Hospital, but it was full," said Ali Abu Ismehan, who was wounded by Israeli fire and had both his legs and pelvis broken.
"I am staying in the street, waiting for them to find me a place inside (the hospital)," he told Reuters.
An Israeli defense official said on Tuesday that although evacuation orders had been issued for the area in which the European Gaza Hospital is located, staff and patients were told they could stay.
World Health Organization Director-General Tedros Adhanom Ghebreyesus said it was "devastating" that the European Gaza Hospital was out of service when access to health care was urgently needed.
He wrote on X that the Nasser Medical Complex was now at full capacity and "has a shortage of medical supplies and drugs for surgery."