Israeli forces carried out new raids in the Gaza Strip on Wednesday, hours before Prime Minister Benjamin Netanyahu was due to address the US Congress.
The latest Israeli attacks destroyed homes in towns east of Khan Younis in southern Gaza and thousands of people were forced to head west to seek shelter, residents said.
Gaza health officials said Israeli military strikes in the past 24 hours had killed at least 55 people, the latest casualties in a war that health authorities in the enclave say has killed more than 39,000 Palestinians.
The Israel leader was due to address Congress later on Wednesday and to meet President Joe Biden at the White House on Thursday. Republican presidential candidate Donald Trump said he would meet Netanyahu in Florida on Friday.
"The United States is a main partner in what is happening in Gaza. We are being killed because of the United States. We are being slaughtered by American planes, American ships, American tanks, and American troops," said Kazem Abu Taha, a displaced resident from Rafah.