Israel-Gaza live updates: Blinken, Abbas meet on restoring 'calm' in West Bank

Another 66 aid trucks with food, water and medicine arrived in Gaza over the last 24 hours -- the "highest single-day delivery so far" -- and "dozens of more trucks are expected to clear today," National Security Council spokesman John Kirby said Tuesday.

But "it’s a trickle compared to what needs to get in," Kirby said, "and we’re gonna keep working that, very, very hard.”

4:59

People in Gaza dealing with limited resources

Aid workers are struggling with a lack of basic necessities and limited cell and internet service.

ABCNews.com

Kirby said the U.S. is continuing to push for safe passage for civilians in Gaza and the resumption of essential services, including water and fuel.

Kirby also said President Joe Biden is set to speak with Jordan's King Abdullah II on Tuesday "to discuss further cooperation with Arab partners to address the worsening humanitarian situation."

-ABC News' Justin Ryan Gomez

A massive blast has been reported at the Jabalia refugee camp in Gaza, which is one of the most densely populated areas in the Gaza Strip.

0:40

IDF strikes Jabalia refugee camp in Gaza

The Israeli Defense Forces took responsibility for the strike claiming it killed a Hamas official but did not acknowledge the civilian deaths and casualties.

ABCNews.com

The Hamas-run Gaza Interior Ministry claims Israeli aircraft dropped six bombs on the residential area.

The Israeli Defense Forces took responsibility for the strike, saying the blast killed a Hamas official who the IDF claimed was one of the leaders of the Oct. 7 attack on Israel.

The "elimination [of Hamas commander Ibrahim Biari] was carried out as part of a wide-scale strike on terrorists and terror infrastructure belonging to the Central Jabalia Battalion, which had taken control over civilian buildings in Gaza City," the IDF said. "The strike damaged Hamas’ command and control in the area, as well as its ability to direct military activity against IDF soldiers operating throughout the Gaza Strip."

The IDF did not acknowledge the civilian deaths and casualties but repeated the warning that residents of Gaza should move south for safety.

United Nations Secretary-General António Guterres said in a statement Tuesday that he's "deeply alarmed by the intensification of the conflict between Israel and Hamas and other Palestinian armed groups in Gaza," including the Israeli military's expansion of ground operations in Gaza and continued airstrikes on Gaza.

He reiterated his call for an immediate humanitarian cease-fire, for more humanitarian assistance allowed into Gaza and for the release of the hostages held by Hamas.

He also condemned both Hamas' Oct. 7 attack on Israel and the killing of civilians in Gaza.

"International humanitarian law establishes clear rules that cannot be ignored. It is not an a la carte menu and cannot be applied selectively. All parties must abide by it, including the principles of distinction, proportionality, and precaution," Guterres said. "With too many Israeli and Palestinian lives already lost, this escalation only increases the immense suffering of civilians."

-ABC News' Ellie Kaufman

Sixty aid trucks crossed through the Egypt-Gaza Rafah border crossing on Tuesday, two Egyptian security sources told ABC News. The trucks are headed to Nitzana, Israel, for inspection before the aid can be distributed in Gaza.

A total of 144 aid trucks have entered Gaza as the humanitarian crisis worsens, according to the Palestinian and Egyptian Red Crescent.