UN Rights Chief Seeks Answers After Indigenous Leader Dies in Custody

The United Nations later identified Rivera as a victim of reprisals linked to his cooperation with UN mechanisms, a concern documented in reports issued by the UN Secretary-General in both 2024 and 2025.

United Nations High Commissioner for Human Rights Volker Türk has expressed deep concern following the death of Indigenous leader and activist Brooklyn Rivera while in State custody in Nicaragua, calling for an immediate, impartial and effective investigation into the circumstances surrounding his death.

Rivera, a well-known Miskitu leader and president of the dissolved Yatama political party, died after spending more than 32 months in detention. His relatives were informed of his death on 30 May, bringing renewed attention to long-standing concerns about human rights conditions and the treatment of political detainees in the country.

The UN rights chief said serious questions remain unanswered regarding Rivera's detention, including the conditions under which he was held, whether he received adequate medical care and the exact events that led to his death.

The case has drawn international attention because Rivera was considered an important Indigenous rights advocate who had worked to raise awareness of issues affecting Indigenous communities in Nicaragua.

Enforced disappearance allegations deepen concerns

Rivera's troubles with authorities intensified after he participated in the United Nations Permanent Forum on Indigenous Issues in New York in May 2023. Following the event, Nicaraguan authorities reportedly prevented him from returning to the country.

The United Nations later identified Rivera as a victim of reprisals linked to his cooperation with UN mechanisms, a concern documented in reports issued by the UN Secretary-General in both 2024 and 2025.

After returning to Nicaragua in September 2023, Rivera was reportedly arrested and detained. Human rights officials say authorities repeatedly refused to disclose information about his whereabouts or legal status despite requests from relatives and international observers.

According to the UN Human Rights Office, the refusal to acknowledge his detention and reveal his location amounted to enforced disappearance under international human rights standards. His fate remained unknown to many until the announcement of his death.

The lack of transparency surrounding his detention has fuelled calls for accountability and independent scrutiny of the case.

UN urges reforms and access to detention centres

The death of Rivera comes amid broader concerns about prison conditions in Nicaragua. The UN Human Rights Office has documented allegations of torture, mistreatment and inadequate healthcare within detention facilities over several years.

Since August 2025, the office has recorded three additional deaths in custody that also appear to be linked to poor detention conditions and insufficient medical care. Human rights advocates warn that these cases point to systemic problems that require urgent attention.

Volker Türk has called on Nicaraguan authorities to release all individuals who are being arbitrarily detained and to ensure that detention facilities comply fully with international standards, including the United Nations Standard Minimum Rules for the Treatment of Prisoners, also known as the Mandela Rules.

He stressed the importance of guaranteeing access to healthcare, legal representation, family communication and an independent justice system for all detainees.

The UN rights chief also urged the Nicaraguan Government to allow the UN Human Rights Office and other international human rights mechanisms to return to the country and gain access to detention centres. Such access, he said, is essential for monitoring conditions, protecting detainees and ensuring greater transparency.

As calls for an investigation grow, human rights organizations and Indigenous groups are seeking answers about Rivera's death while continuing to advocate for accountability and stronger protections for those detained in Nicaragua.