OBSERVERS
Russia's permanent representative to the United Nations said the Security Council had discussed the conflict on Monday. Asked about the possibility of U.N. observers going to the region, he said that would require a mandate from the Security Council.
"This is not a quick process," the envoy, Vasily Nebenzya, was quoted as saying by TASS.
He suggested any observer mission also might involve the Organization for Security and Co-operation in Europe (OSCE). The security watchdog has led mediation in the conflict for years through a panel known as the Minsk Group, headed by France, Russia and the United States.
"Who will be there, in what capacity - is still a question that is being discussed," said Nebenzya.
Azerbaijan's ally Turkey says the Minsk Group's mediation has failed, and Baku wants a role for Ankara in peacemaking.
Azerbaijan seeks an Armenian withdrawal from Nagorno-Karabakh. Armenia rules this out and accuses Azerbaijan of making a land grab.