MOSCOW, April 20, /ITAR-TASS/. The militants organized the provocation on the night of Sunday in Ukraine’s Sloviansk (Donetsk region). It proves the Ukrainian authorities are not willing to disarm nationalists and extremists, Russia’s foreign ministry says in a statement published on Sunday.

“At the night of Sunday, April 20, the Easter armistice was broken in Sloviansk. The attack of the armed militants from the so-called Right Sector claimed lives of innocent civilians… The Russian side is indignant at this provocation of the militants, which proves Kiev’s authorities are not willing to control and disarm the nationalists and extremists.

Russia insists on Ukraine’s strict observance of the obligations it has undertaken to de-escalate the situation in Ukraine’s south-eastern regions, Russia’s foreign ministry said commenting on the events in Sloviansk, where militants from the Right Sector had breached the Easter armistice.

“We are surprises the tragedy happened already after signing on April 17 in the Geneva the statement of the four-sided meeting featuring representatives of Russia, the US, the EU and Ukraine, which contains the urge to refrain from any force actions, threats and provocations,” the foreign ministry said.

“The Russian side is indignant at this provocation of the militants, which proves Kiev’s authorities are not willing to control and disarm the nationalists and extremists,” the foreign ministry said adding the local people found in the attackers’ cars weapons, maps of the region and symbols of the Right Sector.