More than 52,000 Palestinians have been displaced by Israeli airstrikes, the United Nations aid agency said on Tuesday.
About 47,000 of the people displaced people have sought shelter in 58 UN-run schools in Gaza, Jens Laerke, spokesperson for the United Nations Office for the Coordination of Humanitarian Affairs (OCHA), told reporters, according to Reuters.
It comes as the Israeli army unleashed a fresh wave of airstrikes on Gaza overnight.
The residences of five Hamas commanders were also struck, with the Israeli military asserting that some of the homes had been used as command and control centres, while an anti-tank squad in Gaza City was also targeted.
On Monday, President Joe Biden expressed support for a ceasefire between Israel and Hamas rulers in a call with Israeli Prime Minister Benjamin Netanyahu.
The US leader stopped short of demanding an immediate end to the violence, but “expressed his support for a ceasefire” and “encouraged Israel to make every effort to ensure the protection of innocent civilians,” the White House said.
Mr Biden also renewed his “his firm support for Israel’s right to defend itself against indiscriminate rocket attacks,” a readout of the call said.
At least 213 Palestinians have been killed in airstrikes so far, including 61 children, with more than 1,400 people wounded, according to the Gaza Health Ministry.
Meanwhile, ten people have been killed in Israel, including two children, Israeli authorities have said.