Russia said on Wednesday it planned to deploy more of its advanced S-400 surface-to-air missile systems to Crimea as tensions rose with Ukraine over Moscow’s seizure of three Ukrainian navy ships and their crews. . . .
A Reuters correspondent in Crimea on Wednesday also observed a Russian navy minesweeper ship, the Vice-Admiral Zakharin, heading for the Sea of Azov, which is used by both Ukraine and Russia and is an area of growing tensions, from the Black Sea.