The account suspensions were made after USA law enforcement officials contacted Facebook Sunday evening about recently discovered online activity believed "may be linked to foreign entities", Nathaniel Gleicher, Facebook's head of cybersecurity policy, wrote in a blog post Monday.
Gleicher wrote that the accounts were immediately blocked after the company was notified Sunday evening of suspicious behavior and that the questionable accounts - potentially linked to foreign entities - are being investigated "in more detail".
Facebook logo is seen on an android mobile phone in front of a computer screen.
Nearly all of the Facebook pages linked to the accounts appeared to be in French or Russian while the Instagram ones were mostly in English.
"Typically, we would be further along with our analysis before announcing anything publicly", Facebook said.
The company said that they made the announcement despite being only in the initial stage of the investigation as the elections are only a day away and they want to inform their customers about the "action taken and the facts as we know them today".
Facebook said it planned to release more information as the investigation continues.
Gleicher said the accounts were possibly engaged in "coordinated inauthentic behaviour", although he said it was too early to tell whether they were linked to the notorious Russian-based Internet Research Agency troll farm.
The war room is part of stepped up security announced by Facebook, which will be adding some 20,000 employees.
Facebook has since tried to clamp down on nefarious foreign actors.
Facebook didn't always take the risk of election interference seriously, however.
Last month, Facebook removed more than 800 pages and accounts that were spreading misinformation seeking to influence public opinion on both the right and left sides of the aisle. "Our adversaries are smart and well funded, and as we improve their tactics change", the company said in October.
"Finding and removing abuse is a constant challenge".
Last month Tesla reported a $311.5 million profit for the July-through-September period, its first quarterly profit in two years. Tesla said to its knowledge no government agency in any ongoing investigation has concluded any wrongdoing occurred.
It continues a remarkable year for the jockey, who recently won $13 million The Everest for the second occasion on Redzel. Racing Victoria vets found he was lame in the near foreleg after the race. "It's very sad but it could have been worse".
It's a victory for net neutrality advocates, as it maintains pre-existing legal precedent necessary to protect net neutrality. In this case, the decision goes against the Pai/Trump doctrine and bolsters the Wheeler/Obama version of net neutrality.
It was initially shared on the encrypted messaging service Whatsapp but is now being circulated on Facebook and Twitter. A spokesman added: "We are disgusted and shocked at the inhumanity and callousness of those involved in this video".
I just had in my mind that I was going to go 50, and I think everybody kind of understood that was what I was trying to do. I really don't care at that point. "I think my emotions took over, as it normally does", the 21-year-old said.
Justices Gorsuch and Thomas dissented from the ruling saying they would have granted the government's application for a halt. The trial beginning Monday is a consolidated case of lawsuits brought by the ACLU and a multi-state coalition led by NY .
The Gansu provincial authorities demanded examination on unsafe sections of expressways across the province. Pictured: The aftermath of a highway accident in Lanzhou, in northwestern China's Gansu province.
STAR MAN - He may've expected a quiet afternoon prior to kick off, however it proved to be quite the opposite for Sergio Reguilon. Marco Asensio stood as the only bright spark amongst the starting trident with Karim Benzema and Gareth Bale failing to impress.
Wisconsin girl, 10, charged with killing baby
The six-month-old was taken to Gillette Children's Hospital in Saint Paul, where he died two days later on 1 November. According to the district attorney, the girl was in foster care at a home which also serves as a daycare in Tilden.
Fisherman saves toddler floating face-down in the ocean
Although not explicitly stated, the child was most likely floating unconsciously in the water for at least part of the time. Murphy's Holiday Camp co-owner Rebecca Salter told the BBC the incident unfolded on the first day of the family's stay.
Vikings set franchise record with 10 sacks vs. Lions
Leading the sack parade were defensive end Danielle Hunter , who had 3 1/2, and defensive tackle Tom Johnson , who had 2 1/2. Hunter also had a 32-yard fumble recovery for a touchdown that gave Minnesota a 24-6 lead midway through the fourth quarter.
Dolphins S Jones removed himself from win over Jets
One thing is certain, the Jets have a lot of questions to answer in the final eight weeks of the season. Because you start pointing fingers at us that we aren't doing good enough - you didn't do good enough.
Harvick earns title shot with Texas win
He cleared Blaney on the first restart but lost the lead on the second one and had to track Blaney down to take the lead back. NASCAR later said it erred in penalizing Johnson at the start of the race because his auto passed inspection the third time.