Moscow`s annexation of the strategic peninsula of Crimea from Ukraine has not only sparked the worst crisis between Russia and the West since the Cold War but also put under threat the sporting careers of Crimean athletes.
Ukraine`s leader warned on Tuesday that a war with pro-Russian separatists could still break out again as its military said the rebels had greatly stepped up attacks and widened the area of their operations despite a ceasefire.
OSCE observers said Monday they have witnessed the most intense shelling in the flashpoint eastern Ukrainian village of Shyrokyne since fighting began there in mid-February, as well as movement of heavy weapons.
One Ukrainian serviceman was killed and two were wounded in shelling attacks by pro-Russian separatists on Saturday near the port of Mariupol in Ukraine`s south-east, military spokesman Dmytro Gorbunov said.
The United States on Wednesday accused Russia of building up air defence systems inside eastern Ukraine and of involvement in training exercises of pro-Russian rebels in breach of a European-brokered truce.