SIMFEROPOL, May 20. /TASS/. A number of regions of Crimea, including the capital Simferopol, Alushta, Yalta and northern and western areas, as well as Sevastopol experienced a brief blackout at 13:15 Moscow time. The exact causes are yet to be established, the Crimean news agency said. Minutes later Energy Minister Alexander Novak said power supply had been restored.