German Chancellor Angela Merkel called a disparaging comment of Victoria Nuland about EU "absolutely unacceptable," UNN cites VVS.Ukraina.

"Chancellor believes this statement is absolutely unacceptable ... and wants to emphasize once again that Ashton does an outstanding job," - said spokeswoman of Angela Merkel.

"The European Union will continue its intensive efforts to calm the situation in Ukraine", - added the representative of the chancellor.

At the same time, Victoria Nuland during a briefing in Kiev refused to comment on the incident, according to UNN.

"I will not comment this. This is a private, diplomatic conversation," - she said.

As reported, in a conversation leaked online and posted to YouTube on Feb. 4, voices closely resembling those of U.S. Ambassador to Ukraine Geoffrey Pyatt and U.S. Assistant Secretary of State Victoria Nuland discuss loosely the roles of Ukrainian opposition leaders and the United Nations, and frustration over inaction and indecision by the European Union in solving Ukraine’s political crisis.