EU ministers threaten further sanctions unless Russia cooperates with Ukraine's peace plan

Several European foreign ministers are threatening further sanctions if Russia fails to cooperate with Ukraine's proposed peace plan and doesn't stop the flow of arms and militants across its border into eastern Ukraine.

British Foreign Secretary William Hague said Monday in Luxembourg the European Union will be able to agree further sanctions against Russia at a summit of the bloc's 28 leaders Friday, if necessary.

Swedish Foreign Minister Carl Bildt accuses Russia of "conducting a propaganda war with full speed ahead and no signs of their closing the border," saying Russia must face further sanctions unless it changes course.

The EU has so far ordered visa bans and asset freezes for a list of officials but has refrained from imposing broader economic sanctions. EU leaders will review the situation Friday.