Look closer.Venezuela INVASION: US troops and equipment MASSING at Maduro's border - SHOCK CLAIM
But who are these Russian officials? When and where have they sounded the allegations? It is not clear. I haven't find anything in Russian mass media.
US deploying special forces, equipment to Venezuelan border, says Moscow
Is TASS not a major Russian news agency? It seems unlikely that you hadn't noticed the story if you have been searching Russian mass media.