MOSCOW (Reuters) - Russia is in talks with Armenia and Azerbaijan on the deployment of United Nations structures in Nagorno-Karabakh, Russia’s foreign minister said on Friday, as Russian peacekeeping troops moved into the enclave under a recent truce deal.Russia brokered a ceasefire on Tuesday that secured territorial advances for Azerbaijan around the ethnic Armenian region within Azeri borders, where Azeri troops have been battling ethnic Armenian forces over the past six weeks. Moscow agreed the accord without its partners in an international grouping overseeing Karabakh, the United States and France, which have said they are studying the arrangements. Russian Foreign Minister Sergei Lavrov said the U.N. would mainly be involved in humanitarian issues related to the settlement of people driven from their homes by the conflict. “The U.N. is very interested in coordinating their actions with our peacekeepers, with our border guards and with those who will solve humanitarian problems,” Lavrov told an online meeting led by President Vladmir Putin.