By Francesco GuarascioHANOI (Reuters) - The U.N. human rights office has expressed concern about the arrest of a Vietnamese green energy expert, who had collaborated with U.N. and U.S. agencies, just days after President Joe Biden signed business and human rights deals with Hanoi on a visit. Hanoi police on Sept. 15 detained Ngo Thi To Nhien, Executive Director of the Vietnam Initiative for Energy Transition (VIET), an independent think tank focused on green energy policy, Reuters reported last week citing a charity and a source. She "has participated in international and national events, including consultations organized by UNDP on the topic of energy transition," the UNDP in Vietnam confirmed in an email message to Reuters. Vietnam's government has not issued any public statement about Nhien's arrest, and did not reply to requests for comment. Phil Robertson, Deputy Asia Director at Human Rights Watch, said Manh had a strong alibi which was disregarded.

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Persons: Francesco Guarascio HANOI, U.N, Joe Biden, Ngo Thi, Nhien, Le Van Manh, Phil Robertson, Manh, Francesco Guarascio @fraguarascio, Michael Perry Organizations: Vietnam Initiative for Energy, Reuters, UN, Human Rights, World Bank, United Nations, USAID, LinkedIn, UNDP, European, Asia Locations: Hanoi, United States, Vietnam