It eventually was fixed, but some users say they are still experiencing problems.
According to Downdetector, users in the USA and parts of Europe appear to be worst affected by the outage.
California-based social media networking service, Facebook is now facing a major outage leaving the users logged out of the popular social media platform. The hashtag #facebookdown is a trending search term in the U.S.
The problems appear to be affecting users on both desktop and mobile.
According to the Outage Report Twitter account, Facebook and Instagram have been having issues since approximately 11 a.m. ET Wednesday.
"We're working to get things back to normal as quickly as possible".
And its users made sure to poke fun at the social network's rivals.
It all started when Facebook became slow and there had been issues while posting photos.