(Reuters) - Russia can "provide safe passage" for Ukraine grain shipments from the country's Black Sea ports, but is not responsible for establishing the corridors, Russia's U.N. Ambassador Vassily Nebenzia told reporters on Wednesday.

       "We are not responsible for establishing safe corridors. We said we could provide safe passage if these corridors are established. Establish them. It's obvious it's either demine the territory, which was mined by the Ukrainians, or to ensure that the passage goes around those mines," Nebenzia said.

       (Reporting by Michelle Nichols)