Biden spoke to Netanyahu after two Egyptian officials and a Western diplomat said Egypt threatened to suspend its peace treaty with Israel if Israeli troops are sent into Rafah.
Israel and Hamas have recently relaunched indirect talks, mediated by Egypt, Qatar and the U.S., aimed at instituting another cease-fire and hostage swap.
Activists protested at the COP28 summit in Dubai, calling for a Gaza cease-fire and the release of detainees in Egypt and the United Arab Emirates.
There are thousands of foreign passport holders stuck in the Gaza Strip, including an estimated 400 Americans who want out.
Meanwhile, Israeli airstrikes pounded a refugee camp near Gaza City for the second day.
Over 200 trucks have been positioned near the crossing for days. But Egypt’s state-owned Al-Qahera news said just 20 trucks crossed into Gaza.
The announcement to allow water, food and other supplies came as rage over Tuesday night’s blast at al-Ahli Hospital spread across the Middle East.
President Joe Biden is considering a trip to Israel in the coming days, but nothing has been finalized, a senior administration official said Sunday.
Rep. Michael McCaul said "we're not quite sure" how both American and Israeli intelligence missed signs of the deadly Oct. 7 attack.
Previously under indictment for bribery, the embattled New Jersey Democrat is now accused of illegally acting as an agent of a foreign government.