Full Breakdown
U.S. Treasury Sanctions Gaza Flotilla Organizers Linked to Hamas and Muslim Brotherhood Networks
5/19/2026, 10:43:57 PM
Core Sanctions Action
On 19 May 2026 the Office of Foreign Assets Control (OFAC) designated nine individuals for “acting on behalf of” Hamas-linked entities. The four flotilla-related designations are Saif Hashim Kamel Abukishek (Jordan-based PCPA General Secretariat member), Hisham Abdallah Sulayman Abu Mahfuz (Spain-based PCPA acting secretary-general), Mohammed Khatib (Belgium-based Samidoun European coordinator) and Jaldia Abubakra Aueda (Madrid coordinator for Samidoun). Additional designations include Hamas operatives Karim Sayed Ahmed Moghny, Muhammad Jamal Hassan al-Najjar and Sherif Ahmed Ewis Ahmed, plus Muslim-Brotherhood-affiliated Marwan Abu Ras and the Palestinian Scholars Association, which Treasury says act for Hamas. All U.S.-situated property of the listed persons is blocked, and U.S. persons are prohibited from dealing with them.
Background: Flotilla Campaigns and U.S. Counterterrorism Policy
Since 2024 the Popular Conference for Palestinians Abroad (PCPA) and the prisoner-solidarity network Samidoun have organized maritime convoys that aim to break Israel’s naval blockade of Gaza. The U.S. Treasury has labeled the groups “front organizations” for Hamas, citing funding from Hamas’s International Relations Bureau and placement of Hamas officials within their leadership. Israel reports that no humanitarian cargo was found on the vessels, while activists assert the flotillas carry aid and protest the blockade. The sanctions follow earlier designations of PCPA (January 2026) and Samidoun (October 2024) under Executive Order 13224.
Key Individuals Designated
- Saif Hashim Kamel Abukishek – PCPA General Secretariat, flotilla steering-committee member (Jordan).
- Hisham Abdallah Sulayman Abu Mahfuz – Acting secretary-general and president of PCPA (Spain).
- Mohammed Khatib – European coordinator for Samidoun (Belgium).
- Jaldia Abubakra Aueda – Samidoun coordinator in Madrid, founder of a 2021 partner organization (Spain).
- Karim Sayed Ahmed Moghny – Hamas operative and collaborator with the Muslim-Brotherhood offshoot HASM.
- Muhammad Jamal Hassan al-Najjar – Hamas operative linked to HASM’s procurement network.
- Sherif Ahmed Ewis Ahmed – Senior HASM official.
- Marwan Abu Ras – Head of the Palestinian Scholars Association, described as a Hamas-aligned religious body.
Timeline of Recent Developments
- 31 Oct 2001 – Hamas designated under E.O. 13224.
- Oct 2024 – Samidoun designated as a Hamas front.
- Jan 2026 – PCPA designated for Hamas ties.
- 29 Apr 2026 – Global Sumud Flotilla intercepted by the Israeli Navy.
- 1 May 2026 – Israeli forces seized 41 of 51 vessels in international waters (i24 News).
- 19 May 2026 – OFAC announces the nine designations (Treasury press release, Al Jazeera).
Data & Statistics
- Vessels intercepted: 41 seized, fewer than 10 remaining (i24 News); 44 boats reported intercepted (Washington Examiner).
- Sanctioned persons: 9 individuals.
- Casualties since the October 2024 cease-fire: at least 880 deaths (Al Jazeera).
- Activist composition: Approximately 100 Turkish nationals among hundreds of participants from dozens of countries.
Why It Matters: Legal and Humanitarian Implications
Treasury warned that “so-called humanitarian flotillas … represent a significant compliance risk for financial institutions,” and that secondary sanctions may target foreign banks facilitating transactions with the designated persons. The designations aim to disrupt Hamas’s global financing while raising compliance burdens for NGOs and banks that support legitimate aid delivery.
Official Statements & Responses
The Treasury emphasized that the sanctions target “global financial support networks” of Hamas and that the U.S. will continue to block property of designated individuals. Treasury also reminded banks that violations can trigger civil or criminal penalties, and that secondary sanctions may restrict correspondent-bank relationships for foreign institutions that aid the listed persons.
Criticism & Opposition
DAWN’s advocacy manager Isabelle Hayslip argued that the U.S. “reaches for the terrorism label to shut down” Palestinian activism. Samidoun condemned the measures as “the latest manifestation of the ongoing US genocidal war on the Palestinian people.” Activists contend that the flotillas are humanitarian, not terrorist, and that sanctions impede legitimate aid.
Conflicting Reports & Gaps
Sources differ on the number of vessels seized (41 vs. 44) and on whether humanitarian cargo was present. The U.S. cites “evidence” of Hamas support, while Al Jazeera notes the accusations are “without evidence.” Casualty figures since the cease-fire are reported only by Al Jazeera, with no independent verification in the other sources.
Verbatim Quotes
- “The pro-terror flotilla attempting to reach Gaza is a ludicrous attempt to undermine President Trump’s successful progress toward lasting peace in the region,” — Scott Bessent, Treasury Secretary.
- “Every time Palestinians and their supporters organise internationally, Washington reaches for the terrorism label to shut them down,” — Isabelle Hayslip, Advocacy Manager, DAWN.
- “the latest manifestation of the ongoing US genocidal war on the Palestinian people” — Statement, Samidoun.
- “So-called humanitarian flotillas that are organized by or supporting designated parties represent a significant compliance risk for financial institutions,” — OFAC, press release.
What’s Next
Treasury indicated that additional designations may follow if further evidence of Hamas financing emerges, and that banks should review correspondent-account relationships for secondary-sanction risk. Humanitarian NGOs are urged to route aid through approved channels to avoid inadvertent violations. Legal challenges to the designations could be filed under the OFAC removal-petition process.
