Mr Biden will meet with Benjamin Netanyahu on Wednesday before traveling to Jordan to meet Palestinian, Jordanian, and Egyptian representatives.
US Secretary of State Antony Blinken, who has also been visiting Israel, said Mr Netanyahu had agreed a plan to get humanitarian aid into Gaza, which Israel is blockading after Hamas’s deadly attack which killed 1,300 Israelis, but did not provide details.
The UN says a million Gazans have already been displaced by Israeli airstrikes while power is out, drinking water is running scarce and fuel supplies for hospital generators are also low.
Mr Netanyahu warned on Monday of a long battle. He added, amid fears of a wider conflict, that Iran and Hezbollah would pay a heavy price if they were to get involved.
At least 49 Palestinians ‘killed in strikes near border’
At least 49 people Palestinians have been killed in Israeli airstrikes near the southern Gazan towns of Khan Younis and Rafah, the Hamas-run Ministry of the Interior in Gaza has said.
Bombs hit areas west and southeast of Khan Younis and west of Rafah, according to local reports.
Thousands of people trying to escape Gaza are gathered in Rafah, which contains the territory’s only border crossing to Egypt, as international mediators press for a deal to allow aid in and refugees with foreign passports out.
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Israel has advised Gazans to make their way to the south of the territory “for your own safety” as it conducts strikes on the densely populated Gaza City.