Earlier this week, Facebook’s services went completely down for more than six hours. And now some users are reporting that Facebook, Instagram, Messenger, and WhatsApp are not working again.

On Twitter, users have been sharing complaints about WhatsApp, Messenger, and other Facebook apps not working on Friday. It’s unclear what is causing today’s outage. The company has acknowledged the problem and says it’s “working to get things back to normal as quickly as possible.”

Facebook’s servers were affected by a major DNS problem on Monday that “wiped out” the paths to the company’s domains, which took down all Facebook apps and services for hours. Even the company’s internal network was affected, which made the outage even longer and more complicated.

At the end of the day, Facebook CEO Mark Zuckerberg lost $6 billion due to that major outage.

Were you affected by today’s outage of Facebook services? Let us know in the comments below.

We’re aware that some people are having trouble accessing our apps and products. We’re working to get things back to normal as quickly as possible and we apologize for any inconvenience.

— Facebook (@Facebook) October 8, 2021