In tripartite negotiations with Ukraine mediated by the United States in Abu Dhabi, the parties will mainly discuss security issues, said Russian Foreign Minister Sergey Lavrov. "I heard Mark Rubio say that security issues are of central importance in the negotiations in Abu Dhabi and the situation surrounding the Ukrainian conflict in general. Moreover, the very agenda of the negotiations in Abu Dhabi assumes that the first item is the security of Russia, Ukraine and security in this region in general," said the minister. The material is added.