73 UN Staff Still Detained by Houthis: A Two-Year Crisis Inside Yemen

The first wave: June 2024

On June 6–7, 2024, Houthi security forces launched a series of raids across areas under their control, detaining dozens of UN, NGO, and civil society staff, including six UN human rights workers . Within a week, at least 13 UN personnel were confirmed detained, and four additional staff who had been held incommunicado since 2021 and 2023 remained unaccounted for . UN Secretary-General António Guterres condemned the arrests and demanded their immediate release .

Escalation in early 2025

The pace of detentions quickened in early 2025. On January 23–25, seven more UN personnel were arbitrarily detained in Sanaa . Yemen's internationally recognized government called the move a "flagrant violation of international humanitarian law" and warned it endangered aid workers' lives . By early February, the total number of UN staff arrested since 2021 had reached 24 . In direct response, the UN suspended all humanitarian operations in Saada governorate, a Houthi stronghold in northern Yemen .

The summer and fall 2025 raids

The most dramatic escalation came in the second half of 2025. On August 31, Houthi authorities arrested at least 11 UN staff members, forcibly entered World Food Programme premises, and seized UN assets . Less than two months later, on October 19, a raid on a UN facility in Sanaa netted approximately 20 more employees, pushing the total number of detained staff above 50 . Though a dozen international staffers were released days later and allowed to leave the country, local Yemeni staff remained in custody .

The year-end surge

On December 18–19, 2025, another 10 local UN staff were arrested, bringing the total to 69 . Secretary-General Guterres issued a fresh condemnation, calling the detentions "arbitrary" . As of June 2026, the two-year mark since the initial wave, 73 UN personnel remain detained by the Houthi de facto authorities .

Espionage charges and show trials

Throughout the crisis, the Houthis have justified the arrests by accusing detained UN and NGO staff of spying for Israel, the United States, and Western allies . The Houthi-run Foreign Ministry asserted in September 2025 that UN legal protections "should not shield espionage activities" . The following month, Houthi leader Abdul-Malik al-Houthi publicly accused relief agencies and their staff of operating "spy cells" under "humanitarian cover" within international organizations, including the World Food Programme .

The accusations culminated in judicial action. In October 2025, Houthi authorities announced that 43 local UN employees would face trial over alleged connections to an Israeli airstrike that targeted Houthi figures . The UN has consistently rejected these claims as baseless . On November 23, 2025, a Houthi-run Specialized Criminal Court in Sanaa sentenced 17 individuals to death by firing squad on espionage charges linked to Israel and Western countries .

Human Rights Watch has documented that detainees have been held incommunicado, without due process, and subjected to enforced disappearance . The Houthis have produced no real evidence to support their espionage claims .

Death of a WFP employee in custody

The human toll of the detentions became fatally clear on February 10, 2025. A Yemeni World Food Programme staff member, identified by WFP Executive Director Cindy McCain as "Ahmed," died in detention just weeks after being arbitrarily detained on January 23 . Ahmed, a 40-year-old father of two who had worked for the WFP since 2017, was among seven national staff swept up in the January arrests .

Secretary-General Guterres said he was "heartbroken and outraged" by the death, describing it as a "deplorable tragedy" and calling for an immediate, transparent investigation . Amnesty International separately demanded an "urgent independent, effective and impartial investigation" into the circumstances of Ahmed's death . France expressed "profound indignation," describing the detention conditions as "inhumane" . The UN flew flags at half-mast across all its Yemen offices .

Crippling humanitarian operations in a catastrophe

Yemen remains one of the world's worst humanitarian crises, with more than 21 million people requiring assistance . The Houthi detentions have directly compounded that suffering.

In February 2025, after the January arrests and Ahmed's death, the UN suspended humanitarian operations in Saada governorate, a Houthi-controlled area heavily dependent on aid . Human Rights Watch reported that the detentions have "halted aid" in crisis-hit areas . By September 2025, the WFP disclosed that 21 of its own staff were among the detained, directly hampering food assistance delivery . The UN has warned that the continued targeting of aid workers undermines the entire humanitarian response in the country .

The pattern of arrests has also eroded trust between humanitarian agencies and the de facto authorities, making it increasingly difficult to negotiate access and security guarantees for remaining staff.

International demands for unconditional release

The global response has been one of mounting diplomatic pressure—but it has yet to yield results.

The UN Security Council issued its strongest statement yet on June 6, 2026, condemning the detentions "in the strongest terms" and demanding the immediate and unconditional release of all 73 detained UN staff . The Council had previously issued similar statements in June 2025, marking one year since the initial wave .

Secretary-General António Guterres has repeatedly and personally condemned the detentions. His most recent statement, on June 10, 2026, called them "arbitrary" and renewed his demand for immediate release . He has also condemned the referral of detained staff to Houthi criminal courts .

Human Rights Watch, alongside the Cairo Institute for Human Rights Studies and Amnesty International, issued a joint call on June 7, 2026, demanding immediate and unconditional release of all arbitrarily detained UN and civil society staff . In January 2026, HRW urged the UN and concerned governments to "take every action in their power" to secure the detainees' freedom .

Amnesty International has been a consistent voice since the earliest arrests. In July 2024, it called for the immediate release of 13 detained UN staff . It renewed those demands in 2025 and 2026, specifically calling for an investigation into Ahmed's death .

Joint diplomatic statements have added political weight. In June 2024 and again in January 2025, dozens of UN member states—including the United States, United Kingdom, EU member states, Japan, and Canada—issued joint condemnations demanding the detainees' release .

The UN has said that extensive diplomatic efforts continue behind the scenes, including through its Special Envoy for Yemen, who has raised the issue directly in negotiations . But two years after the first mass arrests, those efforts have failed to bring the 73 remaining UN staff home.