Ukraine's top election commissioner, Oleh Didenko, said: "Our country must prepare for the risk that Russia will try to install its representatives, its agents" Ukraine is bracing itself for possible Russian infiltration. More than 8 million Ukrainians, about 20 percent of the population, have fled abroad after the war broke out.

Ukrainian delegates in Brussels discussed how to enable their election officials from other European countries. An increased number of polling stations as well as voting methods such as postal voting, are some technical options currently being considered.