"We once again urge all responsible governments and relevant international institutions to resolutely condemn this brutal act of terrorism and publicly distance themselves from the Kiev regime and its Western patrons, who commit such crimes," the statement read.
"Silence in response to the unbridled barbarism of the Ukrainian nationalists and their puppeteers from 'civilized democracies' would be tantamount to complicity in their bloody deeds," the ministry warned.
The Friday shelling was planned in advance and constitutes an act of intimidation of the civilian population, the ministry said. Ukrainian troops fired cluster munitions using Czech-made Vampire multiple launch rocket systems, in what it said was another attempt by the regime in Kiev to "kill as many Russians as possible."