Several European foreign ministers are threatening further sanctions if Russia fails to cooperate with Ukraine's proposed peace plan and halt interference in the country’s east, AFP reports.
EU foreign ministers are meeting in Luxembourg on June 23, just days before Brussels signs a historic association accord with Kyiv.
The bloc has so far ordered visa bans and asset freezes for officials but refrained from imposing broader economic sanctions.
British Foreign Secretary William Hague said the EU will be able to agree further measures against Russia at a summit of EU leaders on June 27, if necessary.
He said Moscow must be in "no doubt" it faces further sanctions.
Swedish Foreign Minister Carl Bildt accused Russia of "conducting a propaganda war with full speed," adding that Moscow must face further sanctions unless it changes course.