Earlier in the day, Warlick said that the co-chairs would meet with the presidents of Armenia and Azerbaijan to continue the discussion, which started in Vienna and Saint-Petersburg, on the details of the settlement.
Warlick also expressed his hope that the presidents would hold the meeting as soon as possible, although the exact date or place had not been set yet.
Azerbaijan's Armenian-dominated breakaway region of Nagorno-Karabakh proclaimed its independence in 1991. After the military conflict ended in 1994, Azerbaijan lost control over the region. Violence erupted in Nagorno-Karabakh on April 2, 2016 and led to multiple casualties. The parties to the conflict signed a Russian-brokered ceasefire on April 5, but mutual accusations have not stopped so far.
On June 20, the presidents of Armenia, Azerbaijan and Russia met in St. Petersburg where they reaffirmed their commitment to achieve steady progress in political settlement of the Nagorno-Karabakh conflict and agreed to increase the number of OSCE monitors working in the conflict zone.