UN agencies and NGOs have expressed "serious concern" in connection with the prosecution of a large number of their employees, who, according to them, were subjected to arbitrary detention by the Yemeni Houthis, reported France Presse, quoted by BTA.
They called for the immediate and unconditional release of the detained officials.
The Iranian-backed Houthis are holding dozens of UN staff and several humanitarian organizations, most of whom were captured last June.
"We are extremely disturbed by reports that the Houthi de facto government has opened criminal proceedings against a significant number of colleagues who have been arbitrarily detained," said the statement signed by the heads of the affected UN agencies and NGOs.
For now, there is no comment from the Houthis themselves.
Among the signatories of the statement are World Health Organization Director-General Tedros Adhanom Ghebreyesus, UNESCO Director-General Audrey Azoulay, UN High Commissioner for Human Rights Volker Turk and Oxfam Executive Director Amitabh Behar.