KHARKIV, UKRAINE ¨C Kiev said it had arrested suspects who had been armed and instructed in Russia in connection with a blast that killed at least two people Sunday in a crowd at a pro-Ukrainian rally far from eastern Ukraine¡¯s war zone.
Ukrainian authorities fear violence could spread from two rebellious provinces to other areas in the mainly Russian-speaking east, a swathof territory the Kremlin calls ¡°New Russia.¡±
The bomb in Kharkiv, the biggest city in the east, struck one of numerous events across Ukraine on Sunday marking the deaths of 100 protesters a year ago in an uprising that toppled a Moscow-backed president.

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