Ukraine ordered full mobilisation of its forces as bases in Crimea were surrounded and airports and ports occupied by Russian troops. No shots were fired, but according to reports, Alexander Vitko, the commander of Russia’s Black Sea fleet, told Ukrainian forces in Crimea to surrender by 5am (3am GMT) or face a “storm”. The Russian defence ministry insisted that reports of an ultimatum were“nonsense”. Pro-Russian troops also took over Kerch, a ferry terminal on the easternmost tip of the peninsula, intensifying concerns that Moscow is preparing for a further military advance. The terminal is about 12 miles by sea from Russia and serves as a departure point for many Russia-bound ships.