The Ukrainian embassy blames Russia for the graffiti of the Warsaw monument, calling it "sowing hostility" between Ukrainians and Poles.
The inscriptions "Slava UPA" ("Glory to the Ukrainian Insurgent Army"), painted in red, appeared on two monuments in Warsaw, Polish broadcaster TVN24 reported on November 14.
"We believe that this illegal act is an expression of the hybrid warfare that Russia is trying to conduct by any means possible in European countries, especially in Poland," the Ukrainian embassy said in a statement.