US Secretary of State Mike Pompeo warned against the "malign" influence of Russian trolls and Chinese investment during a brief tour through the Western Balkans on Friday.
Washington frequently accuses Moscow of meddling in the region that sits the outskirts of the European Union.
China has also become a target for US ire because of its growing investment in the Balkans, even if the EU remains the dominant economic force.
Speaking in North Macedonia after an earlier visit to Montenegro, Pompeo warned that the country must "take firm measures to resist and defend against malign influences."
Disclaimer: No Business Standard Journalist was involved in creation of this content