Nickolay Mladenov

The Bulgarian diplomat Nickolay Mladenov has told UN Secretary General Antonio Guterres he will be unable to take up the role as United Nations Libya envoy next year due to "personal and family reasons," the UN spokesman said on Tuesday.

The UN spokesman, Stephane Dujarric, told reporters that Mladenov informed Guterres on Monday that when his current role finishes on December 31 he will resign from the United Nations and "will not be able to take up the position as special envoy for Libya for personal and family reasons".

Mladenov has been the UN Middle East envoy since 2015, charged with mediating between Israel and the Palestinians.

The UN Security Council last week approved Guterres's proposal to appoint Mladenov as Libya mediator and Norwegian Tor Wennesland to succeed Mladenov as Middle East envoy.