Ukraine cut off electricity as well as train and bus service to Crimea on Friday, moves that could raise tensions with Russia, which annexed the peninsula in March and has been prodding Kiev to negotiate with Moscow-backed rebels in the country’s eastern provinces. The power cutoff is the second this week by Ukraine, which says it has electricity shortages of its own because rebels have halted shipments of coal to its power plants. The halt in train and bus service, however, could indicate Ukraine is stepping up its pressure of the peninsula. In both cases, Ukrainian officials cited safety concerns. Passenger and cargo train service, both foreign and […]