Amid rising calls for a pause in fighting to administer polio vaccinations to children in Gaza, Hamas is saying Israel's temporary pause is not enough.

"This suspicious method that Netanyahu and his government are trying to impose will thwart the United Nations' move and deprive hundreds of children of vaccination against polio," Hamas said in a statement Wednesday.

It is still unclear if Prime Minister Benjamin Netanyahu's plan is different from the United Nation's requests for a temporary pause in fighting.

Hamas is calling for a comprehensive truce throughout Gaza to allow for a polio vaccination campaign.

-ABC News' Will Gretsky

The World Food Programme announced it is pausing the movement of its employees in Gaza until further notice after its team came under fire on Tuesday, near an Israeli checkpoint.

The WFP team -- traveling in two armored vehicles -- was returning from a mission to Kerem Shalom after escorting a convoy of trucks carrying humanitarian cargo routed to central Gaza.

"Despite being clearly marked and receiving multiple clearances by Israeli authorities to approach, the vehicle was directly struck by gunfire as it was moving towards an Israeli Defence Forces (IDF) checkpoint. It sustained at least ten bullets: five on the driver’s side, two on the passenger side and three on other parts of the vehicle. None of the employees onboard were physically harmed," the WFP said in a statement.

WFP called for protection of humanitarian workers providing essential aid to civilians in Gaza.

"The incident is a stark reminder of the rapidly and ever shrinking humanitarian space in the Gaza Strip, where increasing violence compromises our ability to deliver life-saving assistance. The already critical situation is exacerbated by restricted access and heightened risks, leading to decreased food supplies reaching those in desperate need," WFP said.

-ABC News' Will Gretsky

Israeli Prime Minister Benjamin Netanyahu has approved "limited pauses" in fighting to allow for polio vaccinations for children in Gaza amid calls from international aid organizations, according to an Israeli official familiar with deliberations.

The pauses will only be in designated areas, according to the official.

A 10-month-old baby was paralyzed and became the first confirmed case of polio earlier this month.

-ABC News' Jordana Miller

Ten people have been killed since the start of the Israel Defense Forces' operation in the West Bank overnight, the Palestinian Ministry of Health said Wednesday.

The operation is targeting Jenin, Tulkarm and Nablus in the West Bank, IDF spokesman Nadav Shoshani said during a Zoom briefing with reporters Wednesday.

Shoshani implied the operation could go on for a few days, saying it "won't end tomorrow," during the IDF briefing.

The IDF did not say how many troops are involved in the operation, but Shoshani called it a "large" operation. Israeli security forces called it a "counterterrorism operation," in a release Wednesday.

The IDF is surrounding the Ibn Sinai hospital in Jenin "to prevent terrorists from taking shelter there," Shoshani said, but said the IDF has no plans to "enter, capture or seize" the hospital.

There are no plans to evacuate civilians from the areas where the IDF is operating, Shoshani said.

One of the targets of the operation is the cell that planned a failed suicide bombing attempt in Tel Aviv earlier this month, but the attack did not prompt the large operation, Shoshani added.

-ABC News' Jordana Miller, Nasser Atta and Guy Davies