"Just in one place in the capital we found eight homemade explosive devices, four kilograms of TNT, automatic weapons, about forty hand grenades and 2,000 cartridges," Gitlyanska said.
Kiev has repeatedly accused Moscow of supporting pro-Russian separatists in eastern Ukraine and of attempting to destabilize other Ukrainian regions.
The United Nations said this week that arms and fighters were still pouring into rebel-held areas of eastern Ukraine from Russia and that the death toll from 20 months of fighting now exceeded 9,100.
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