An expanding protest by farmers opposed to the influx of Ukraine‘s grain into Poland is beginning to threaten Lithuania’s national security, according to the NATO ally’s top diplomat.

“It’s obviously reminiscent of some hybrid operations which are intensively exploited by Russian propaganda,” Lithuanian Foreign Minister Gabrielius Landsbergis said on Wednesday, per a Vilnius-based outlet. “The actions planned in the Suwalki Gap no longer resemble protests, but actions against the national security of both Poland and Lithuania.”