1. About 40 percent of those who reported problems said the social network was completely down while 36 percent said they were having issues logging in as of 12 p.m. Wednesday, according to downdetector.com.
  2. Facebook confirmed that it was seeing error reports and investigating "degraded API performance."
  3. In an update posted around 1 p.m., the social media company said the issues were ongoing, although reports of degraded performance were far lower than earlier Wednesday.
  4. It was not immediately clear what caused the problems.
  5. Many users took to Twitter to share their frustrations.
  6. Check back for updates on this developing story.
Read next page