About 90 truckloads of aid had entered the Gaza Strip by Thursday, according to the United Nations, the first major influx of food that Israel has allowed in after a two-month blockade that deepened the humanitarian crisis in the territory.

The U.N. humanitarian affairs office and the Israeli military confirmed that the aid deliveries were reaching warehouses and other points inside Gaza after days of delays. But aid officials said the shipment was a tiny fraction of what was needed.

“Desperately needed aid is finally trickling in — but the pace is far too slow. We need more aid trucks coming in daily,” the World Food Program, one of the main U.N. agencies operating in Gaza, wrote on social media.

Israel’s two-month ban on the entry of food and fuel led to widespread hunger in the enclave, which has been devastated by more than a year of war against Palestinian militant group Hamas.

Israel justified the ban as an attempt to force Hamas to surrender and release the remaining hostages. Israeli officials have asserted that Hamas has largely diverted or made money off aid deliveries, a claim disputed by international aid groups.

Israel conditioned the resumption of assistance on the United Nations signing off on a new mechanism in which they would distribute relief in areas under Israeli security control. The U.N. and many other aid nonprofits refused, saying it would fundamentally compromise their work.

After weeks of rising international pressure, Israel announced Sunday that it would let U.N. agencies send small amounts of food into the enclave under the old system. But wrangling between Israel and the United Nations further delayed the provision of aid for days.

OCHA, the U.N. agency that coordinates humanitarian relief, said Israel had stipulated that the aid trucks take an extremely perilous route through Gaza. U.N. officials believed that unless the plans were changed, looting was “highly likely” to ensue, the agency said.

The Israeli military agency that works with the aid agencies did not respond to a request for comment.

Netanyahu names new spy chief

Meanwhile Thursday, Israeli Prime Minister Benjamin Netanyahu named a replacement spy chief to lead Israel’s domestic intelligence service, known as the Shin Bet, after a public clash with the last agency director.

Maj. Gen. David Zini, who “served in many operational and command positions” in the Israeli military, was appointed to lead the Shin Bet, according to a statement from the prime minister’s office. Netanyahu’s announcement is just the first step in the process, and there are already signs the path ahead for Zini may be fraught.

The announcement came after a confrontation with the previous agency director, Ronen Bar, whom Netanyahu fired in March and who stepped down last month while the dismissal was being considered by Israel’s highest court. On Wednesday, the high court wrote that Bar’s dismissal had been “tainted with many flaws.”

The court’s ruling also raised questions about potential conflicts of interest, given that Netanyahu had fired Bar while the Shin Bet was investigating some of the prime minister’s aides in connection with potential impropriety in their dealings with Qatar.

Israel’s attorney general, Gali Baharav-Miara, on Thursday questioned Zini’s appointment, saying Netanyahu had defied legal guidance to hold off on choosing a new Shin Bet chief.

Baharav-Miara argued to the high court that Netanyahu had improperly fired Bar, and the attorney general has said that Netanyahu cannot proceed with appointing a new Shin Bet chief until questions about the process and conflicts of interest are resolved. In March, the Israeli Cabinet began the process of trying to dismiss Baharav-Miara.

The opposition leader, Yair Lapid, called on Zini not to accept the appointment before Israel’s high court could weigh in.