European Council President Charles Michel has "warmly" welcomed the first meeting of the border commissions held on Armenia-Azerbaijan border to advance discussions on delimitation of inter-state border and how best to ensure stable situation.

Michel described the move as "tangible progress" following his trilateral meeting with Armenian Prime Minister Nikol Pashinyan and and Azerbaijani President Ilham Aliyev.

Michel, Pashinyan and Aliyev held their third meeting since December in Brussels on May 22 and focused on the situation in the South Caucasus and the development of EU relations with both countries as well as the broader region. According to a statement from the EU, Michel told the two leaders that it was necessary that the rights and security of the ethnic Armenian population in Nagorno-Karabakh (Artsakh) be addressed.