A meeting of representatives of "Norman Quartet" in Berlin has yielded "some tangible results" for the negotiations of the leaders of the four states in Minsk on February 11.
Ambassador of Ukraine to Germany Andriy Melnyk has stated this in his Twitter.
"Just finished 8 hour difficult negotiations in Berlin with some tangible results for the Normandy leaders in Minsk," the ambassador has posted.
There are no other official evaluations of the meeting, which began on Monday in the afternoon and lasted till night, so far.
The main task of the deputy foreign ministers of Ukraine, Russia, Germany and France was make all necessary preparations for the Minsk summit to settle the situation in eastern Ukraine on February 11.
The meeting was held behind closed doors.