Russia's Lavrov, U.S. Tillerson to discuss North Korea in Vienna: RIA

MOSCOW (Reuters) - Russian Foreign Minister Sergei Lavrov is expected to discuss the North Korean crisis with U.S. Secretary of State Rex Tillerson during the meeting in Vienna this week, RIA news agency quoted Deputy Foreign Minister Sergei Ryabkov as saying. (writing by Denis Pinchuk; editing by Katya Golubkova)