Jordan has cancelled a summit with Palestinian, US and Egyptian leaders, just hours before Joe Biden was due to visit the region.
The US president was set to meet them after his visit to Israel on Wednesday.
The summit’s cancellation is a blow to Mr Biden’s diplomatic efforts over the Middle East crisis.
Jordan’s foreign minister Ayman Safadi said: “There is no use in talking now about anything except stopping the war”.
Mr Biden will no longer visit Jordan, and instead only visit Israel, the White House said.
A spokesperson said: “After consulting with King Abdullah II of Jordan and in light of the days of mourning announced by President Abbas of the Palestinian Authority, President Biden will postpone his travel to Jordan and the planned meeting with these two leaders and President Sisi of Egypt.
“The president sent his deepest condolences for the innocent lives lost in the hospital explosion in Gaza, and wished a speedy recovery to the wounded.
“He looks forward to consulting in person with these leaders soon, and agreed to remain regularly and directly engaged with each of them over the coming days.”
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