Facebook says it removed 30 Facebook accounts and 85 Instagram accounts.
The social network identified 82 pages, groups and accounts that originated in Iran and violated policy on coordinated "inauthentic" behavior.
Sample posts shared included inflammatory commentary about US President Donald Trump, British Prime Minister Theresa May and the controversy around freshly appointed US Supreme Court Justice Brett Kavanaugh.
"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", he concluded.
Facebook didn't always take the risk of election interference seriously, however.
The war room is part of stepped up security announced by Facebook, which will be adding some 20,000 employees.