"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," Nathaniel Gleicher, Facebook's Head of Cybersecurity Policy, said in a new release.
Officials with the social media mogul said they have removed 30 Facebook accounts and 85 Instagram accounts.
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"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," Gleicher said.
U.S. officials said there is no indication American's voting infrastructures have been compromised; however, they are warning that foreign operatives are trying to influence voters.
CNN contributed to this post.