"We call for an immediate end to the hostilities," RIA Novosti quoted Michel.
According to him, the EU is making every effort to resume the political dialogue within the framework of the OSCE Minsk Group.
He clarified that this is the only way to end the violence.
Earlier, US Secretary of State Mike Pompeo called on the parties to the conflict in Nagorno-Karabakh to a truce, and external actors to non-intervention.