Israel-Gaza updates: IDF says it exposed Hamas tunnel under Shifa Hospital

Telecommunications services have been partially restored in Gaza thanks to fuel reaching the region, the Palestinian Authority Communications Ministry said.

About 17,000 liters of diesel entered Gaza on Friday via the Egypt-Gaza Rafah border crossing, according to border crossing spokesman Wael Abu Omar.

Two fuel trucks are expected to enter Gaza daily beginning on Saturday, according to Israel's Coordinator of Government Activities in the Territories.

The Israeli government said Friday that it will allow two fuel trucks per day to enter Gaza. But no fuel was delivered Friday due to the latest communications blackout, the United Nations Relief and Works Agency for Palestine Refugees in the Near East said.

Juliette Touma, spokeswoman for UNRWA, told ABC News that fuel has been "used as a weapon of war" since the Israel-Hamas conflict began.

“Seventy percent of people do not have clean drinking water because there is no fuel. … Sewage is starting to overflow in some parts of Gaza. It's a disaster," she said. "[We] should not be forced to beg for fuel just to be able to do our work. It's unacceptable."

UNRWA's shelters are currently housing 800,000 people, which Touma said is "way over the capacity."

"We planned for less than one quarter of what we have," she said. "And with the restrictions that we have on fuel and the little aid that has been coming in that we are not able to even collect or pick up, the situation is becoming tragic by the hour."

-ABC News' Patrick Reevell

The United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) confirmed that no fuel was delivered to the Gaza Strip on Friday due to the latest communications blackout.

The agency said it was forced to suspend its operations there after telecommunications companies ran out of generator fuel, plunging the war-torn territory into another blackout on Thursday afternoon.

"We are unable to operate due to the lack of communications," an UNRWA spokesperson told ABC News in a statement on Friday afternoon. "We have no communications with Gaza. Transport of aid trucks, water desalination and pumping and sewage treatment activities have been halted."

-ABC News' Ayat Al-Tawy and Zoe Magee

The Israeli government announced Friday that it will allow two fuel trucks per day to enter the war-torn Gaza Strip.

The Israeli War Cabinet said in a statement that it has "unanimously approved a joint recommendation" of the Israel Defense Force and Israel's Shin Bet internal security agency "to comply with the U.S. request and allow the entry of two diesel tankers a day for the needs of the U.N. to support water and sewer infrastructure."

The trucks will pass through the Egyptian-controlled Rafah border crossing with the help of the United Nations, delivering the fuel to civilians in southern Gaza, "provided that it does not reach Hamas," according to the Israeli War Cabinet.

"This action allows Israel the continued international maneuvering space necessary to eliminate Hamas," the cabinet said. "This action is intended, among other things, to minimally support water, sewage and sanitation systems, in order to prevent the outbreak of epidemics that could spread throughout the entire area, harm both the residents of the Strip and our forces, and spread even into Israel."

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How to help victims of the Israel-Gaza conflict

More than 2,600 people, including civilians and hundreds of children, have been killed and nearly 9,000 injured in Israel and Gaza since the war broke out on Saturday.

The U.S. has been urgently pressuring Israel to allow fuel into Gaza over the last few days, with Secretary of State Antony Blinken calling multiple members of the Israeli war cabinet to warn them that failure to move quickly on this would certainly result in a humanitarian catastrophe, according to a senior State Department official.

Blinken told the Israeli officials that fuel had to be separate from hostage negotiations, the official said.

The official said the U.S. will continue to push for the amount of fuel allowed in to be steadily increased.

-ABC News' Jordana Miller and Shannon Crawford