A summit between between Palestinian, US, Jordanian and Egyptian leaders, has been cancelled, 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.”
The summit would have focussed on getting humanitarian assistance into Gaza, while working towards calming tensions in the region.
The cancellation of the summit comes after a deadly strike on a hospital in Gaza, which the Hamas-led government said has killed up to 500 people.
Hamas has blamed Israel for the incident, while Israel said the Palestinian Islamic Jihad (PIJ) group was responsible.
King Abdullah II said the strike was a “shame on humanity”, and called on Israel to immediately stop its military campaign in Gaza.
Accusing Israel of the strike, leader of the Palestinian Authority Mahmoud Abbas said the country has crossed “all red lines” and described it as a “hideous war crime”.
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