Russia-controlled Crimea has frozen fuel prices and imposed gasoline rationing in response to shortages resulting from a spate of Ukrainian drone attacks on Russian oil refineries. Regional governor Sergei Askyonov said on Monday that motorists in Crimea, which Russia annexed from Ukraine in 2014, would be limited to buying 30 litres of fuel at a time. He also announced a 30-day price freeze on various grades of diesel and gasoline, a measure apparently designed to minimise public anger over the disruption. Aksyonov announced the move on social media, saying he had held a meeting with oil traders to seek solutions...