Israel-Gaza updates: 22, including 18 children, reported dead in Rafah strikes

The U.S. military's emergency pier system to get humanitarian aid into Gaza is still en route, Pentagon spokesperson Maj. Gen. Pat Ryder told reporters Thursday.

Ryder said that USAID continues to work with organizations to finalize a distribution plan for the aid once it's transferred by the system -- known as JLOTS -- to shore. He also acknowledged that the deadly Israeli strike that killed seven humanitarian aid workers this week "certainly doesn't make that job easier."

He added that it "has not deterred us from continuing to work with groups and NGOs to come up with solutions."

Ryder confirmed that Israel has committed to providing security on shore for the pier and port system.

"I know Israel's investigating in terms of the strike on World Central Kitchen and we trust that Israel will provide the security that we need on the shore," he said.

Ryder said the system is expected to be operational by the end of April or early May.

"We're not changing the mission. We've been tasked to provide a temporary pier. Everything is on track on schedule at this point," he said.

-ABC News' Luis Martinez

The Israel Defense Forces have suspended two military commanders after seven World Central Kitchen workers were killed in an IDF airstrike earlier this week, according to Israeli media.

-ABC News' Ellie Kaufman

A UNICEF spokesperson on the ground in Gaza told ABC News Live she is "shocked" by the conditions she has seen in hospitals, including malnourished children.

The spokesperson, Tess Ingram, said she recently visited Al-Aqsa Hospital in central Gaza and met a 7-year-old boy who was "eating grass."

"He was so sick and in so much pain," Ingram told ABC's Terry Moran Thursday. "Thankfully, the doctors there think he will make a full recovery, but he is one of hundreds of children they said that they're treating for malnutrition at the moment."

"This has to be unacceptable, particularly when the aid is just a few kilometers away, as is the nutrition treatments that we have that can save children's lives," she added.

Asked how to protect those providing humanitarian resources in Gaza, following the Israeli airstrike on an aid convoy that killed seven World Central Kitchen aid workers earlier this week, Ingram said "it's called international humanitarian law."

"That is what we are calling on the parties to the conflict to respect," she said.

-ABC News' Luis Rodriguez, Isabella Meneses, Kiara Brantley-Jones and Robinson Perez

Officials from humanitarian organizations operating in the Gaza Strip stressed to reporters Thursday that they believe the Israeli airstrikes that killed seven World Central Kitchen aid workers on Monday is part of a pattern.

They said other humanitarian workers were targeted and killed before, including doctors, nurses and journalists, but they were Palestinians.

"The condemnation for the World Central Kitchen incident is right and just, but where is it for every other humanitarian worker, for every other hospital that is destroyed, for every attempt to manipulate the media?" said Christopher Lockyear, secretary general of Doctors Without Borders / Médecins Sans Frontières. "What happened to [World Central Kitchen] is part of a pattern. ... This is about impunity and total disregard of rules of war."

Asked if the World Central Kitchen attack will significantly decrease humanitarian work in Gaza, Lockyear responded, "We remain present in Gaza, but we are assessing the risks on a daily basis."

-ABC News’ Camilla Alcini and Ellie Kaufman