UNITED NATIONS — The United Nations says two UN staff members detained in Syria have been released in the last few days, but 19 are still being held.

UN spokesman Martin Nesirky said Tuesday the United Nations is trying to secure the release of all UN personnel “as soon as possible.”

Nesirky said most of the detained UN staff members are Syrians.

Deputy spokesman Farhan Haq said later that the two detainees who were freed were Syrian. He said one worked for the UN agency dealing with Palestinian refugees, and the other for UN. Habitat.

Nesirky would not say who was holding any of the UN personnel.

Copyright 2014 The Associated Press.