Violence erupts amid attempts at new cease-fire in eastern Kiev . Ukrainian separatists attacked with mortars , weapons fire , Pro-Russian officials say . Kremlin responds to cease-fire plan . Ukrainian guards repelled a separate attack at a checkpoint nearby . CNN statement says Vladimir Putin supports a cease-fire .
Violence erupts amid attempts at new cease-fire in eastern Kiev . Ukrainian separatists attacked with mortars , weapons fire , Pro-Russian officials say . Ukrainian guards repelled a separate attack at a checkpoint nearby . CNN statement says Vladimir Putin supports a cease-fire .