Reuters reported that the UN spokesman Farhan Haq said, "What we are doing is a temporary transfer of some staff from Sudan. Some staff will remain to do vital tasks, but some are being temporarily moved because of the security situation."
Farhan Haq did not provide information on the number of employees being transferred, the site where they were going to, when they would return or how many staff would remain in Sudan.
Security forces of the Transitional Military Council, which overthrew President Omar al-Bashir, launched an attack on protesters in the capital Khartoum on Monday.
The Committee of Doctors close to the demonstrators on Wednesday declared that at least 108 people were killed, 40 of them were found in the waters of the Nile River, and 326 were injured by the crackdown.
The leaders of the mass movement refused the call of the Transitional Military Council to negotiate, and said, "We need justice and accountability before talking about any political process."
The United Nations activities in Sudan include development cooperation, humanitarian assistance and peacekeeping operations by the African Union-United Nations Mission in Darfur (UNAMID) deployed since 2007, according to the UN website.