A dispute over natural gas supply flared Friday between Russia and Ukraine, even as a ceasefire between Ukrainian forces and pro-Russian separatists in eastern Ukraine appeared to be taking hold.
Both sides in the conflict have begun withdrawing their heavy weaponry from the front line of the conflict, in line with a peace deal agreed to in Minsk, Belarus, two weeks ago.
There has also been a reduction in the fighting between the two sides, although some artillery fire can still be heard. But the ceasefire remains fragile.
