Three groups that have prevented humanitarian aid from reaching Gaza — including one accused of looting or destroying supplies — have raised more than $200,000 from donors in the U.S. and Israel, The Associated Press and the Israeli investigative site Shomrim have found in an examination of crowdfunding websites and other public records.

Incentivizing these donations by making them tax-deductible runs counter to America's and Israel’s stated commitments to allow unlimited food, water and medicine into Gaza, say groups working to get more aid into the territory.

Donations have continued even after the U.S. imposed sanctions against one of these groups.

By not cracking down on these groups, Israel is showing a “lack of coherence” in its Gaza aid policy, said Tania Hary, executive director of Gisha, an Israeli nonprofit that has long called on Israel to improve conditions in the territory.

“If you’re on the one hand saying you’re allowing aid in but then also facilitating the actions of groups that are blocking it, can you really say you’re facilitating aid?” she said.

Israeli officials did not respond to requests for comment. The U.S. State Department claimed it is committed to ensuring the delivery of aid, but had no comment on the fundraising efforts by the far-right groups.

The United Nations and aid groups have failed to distribute thousands of truckloads of goods that have reached Gaza, saying deliveries have repeatedly been hampered by military operations, lawlessness inside Gaza and delays in Israeli inspections.

The three groups examined by AP and Shomrim have slowed the delivery of aid by blocking trucks on their way to Gaza, either by snarling traffic or simply standing in front of the main Karm Abu Salem crossing into Gaza.

While these organizations are not the primary impediment to aid shipments, they have received tacit support from some Israeli leaders.

Israel's ultranationalist minister for national security, Itamar Ben-Gvir, has said aid shipments to Gaza should be blocked and he supported the right of opponents to demonstrate, though he said it should not be done violently.

One of the groups, Mother’s March, has raised the equivalent of over $125,000 via Givechack, an Israeli crowdfunding site, the AP and Shomrim found. The group also raised some $13,000 via JGive, a U.S. and Israeli crowdfunding site.

Donations to charitable organizations are tax-deductible in Israel and the U.S.

Mother's March does not raise the money directly. Instead, it works with an allied group called Torat Lechima that raises funds on its behalf.

Torat Lechima, whose name translates loosely as “combat doctrine,” is active in Israeli nationalist circles and works to “strengthen the Jewish identity and fighting spirit” among Israeli soldiers, according to its website. Torat Lechima continues to solicit funds for Mother's March on the JGive site in the U.S.

Until it was sanctioned last month, a third group, Tzav 9, raised over $85,000 from close to 1,500 donors in the U.S. and Israel via JGive. JGive said that donations made to Tzav 9 were frozen even before the sanctions were imposed and not delivered to the group.

Hundreds of activists set up tents at Karm Abu Salem for several nights in early February to stop the delivery of aid.

The head of Mother’s March, Sima Hasson, was briefly detained by Israeli police in January after temporarily blocking trucks.

Israeli news reports have shown large convoys of cars blocking aid trucks from traveling on Israeli highways, as well as activists looting trucks and destroying supplies.

In its sanctions order, the White House accused Tzav 9 of violently blocking roads, damaging aid trucks and dumping supplies on the road.

It said in May that Tzav 9 members looted and set fire to two trucks in the West Bank carrying aid destined for Gaza. Last week, the White House imposed sanctions on the group's co-founders. On Monday, the European Union also sanctioned Tsav 9.

Israeli police, who fall under the authority of Ben-Gvir, have made few arrests, though the group appears to have stopped its activities in recent weeks.

Two international courts, the International Court of Justice and the International Criminal Court have accused Israel of war crimes and genocide in Gaza.

It's unclear how effective these sanctions will be. Extremist Israeli settlers in the West Bank say similar U.S. sanctions imposed on them have had little effect, in part because Israeli leaders helped circumvent them.

Hary, of the Israeli activist group Gisha, noted that the efforts of Mother’s March and Tzav 9 appear to have quieted down in recent weeks. But as they continue to seek donors, she said they could resume activities at any moment.

“They’re getting signals from various places in the government that Gaza should be completely cut off,” she said.