Facebook issued an 'election update' on Monday evening, revealing a Sunday evening visit from law enforcement.
"On Sunday evening, US law enforcement contacted us about online activity that they recently discovered and which they believe may be linked to foreign entities," Facebook said in their statement.
A joint statement released by DHS Secretary Kirstjen Nielsen, Attorney General Jeff Sessions, DNI Dan Coats, and FBI Director Christopher Wray said, "Americans should be aware that foreign actors—and Russia in particular—continue to try to influence public sentiment and voter perceptions through actions intended to sow discord."
"Our very early-stage investigation has so far identified around 30 Facebook accounts and 85 Instagram accounts that may be engaged in coordinated inauthentic behavior," Facebook continued. "We immediately blocked these accounts and are now investigating them in more detail. Almost all the Facebook Pages associated with these accounts appear to be in the French or Russian languages, while the Instagram accounts seem to have mostly been in English — some were focused on celebrities, others political debate."
"Once we know more — including whether these accounts are linked to the Russia-based Internet Research Agency or other foreign entities — we will update this post," Facebook added.