Russia hits rail and fuel facilities in attacks deep in Ukraine

Russian military vehicles in an area controlled by Russian-backed separatist forces in Mariupol (Alexei Alexandrov/AP)

Russia has unleashed a string of attacks against Ukrainian rail and fuel facilities, striking crucial infrastructure far from the front line of its eastern offensive.

Meanwhile, two fires were reported at oil facilities in western Russia, not far from the Ukrainian border. It was not clear what caused the blazes.