The social media giant, the third most popular website in the world with 2.27 billion monthly active users, has been experiencing problems since 9:52 a.m. PST.
As of around 1:40 p.m. local time many people reported the social media website was working again.
Those who tried to log in got an error message reading, "Sorry, something went wrong".
North Korea hiding missile bases in remote areas
North Korea is accusing the USA and South Korea of violating a treaty aimed at lowering conflict on the Korean peninsula. But to some analysts, North Korea never explicitly agreed to that, only to the more vague term "denuclearization".
Did you have trouble accessing your Facebook feed? Outage reports show there are still widespread outages in the eastern US with more isolated outages in the central and western U.S. "We quickly investigated and restored access for everyone".
Facebook seems to be experiencing some issues Monday afternoon. A map showed the outages concentrated in the Northeast and Midwest of the United States, as well as southern Brazil.