[UPDATE] Microsoft issued a statement on the outage to GameSpot, explaining "networking changes" resulted in a connectivity error, which has since been fixed.
"At 10:50 a.m. PDT today, the Xbox Live Services team was making some networking changes that resulted in a connectivity error for all users in accessing Xbox Live and Xbox.com. Our engineering teams quickly reversed the change and all systems are restored," Microsoft said.
The original story is below.
Xbox Live and Xbox.com are currently offline, though it is unclear why.
"We have run into an issue with the Xbox Live service, and are currently investigating. Stay tuned for status updates," the official Xbox support Twitter account wrote minutes ago.
At press time, a Microsoft representative could not be reached for comment.
The official Xbox Live Status Page currently states that users may experience difficulties signing into Xbox Live and other general Xbox Live connectivity issues affecting both the Xbox 360 and Xbox.com
"Uh oh! You tried to sign in to Xbox Live and it didn't work? We have our top engineers working on this. Please check back for an update in 30 minutes," the company said.