Update 4: The Xbox Live support Twitter account confirmed at 11:23 PM PDT that all investigations have been cleared. The Xbox Live status page confirms that all core services are currently up and running.

Update 3: The status page still doesn't reflect the issue with playing games and apps, but the Xbox support Twitter account has sent out a message at 5:49 PM PDT stating, "Our teams are working hard to make sure you can access all of your game & app content."

Update 2: As of 4:13 PM PDT, The Xbox Live status page now lists the only affected gaming and social services as unlocking achievements, suggesting the sign-in issues have (at least temporarily) been resolved. A support tweet adds, "Sign in across devices should be back to normal."

However, issues with buying downloadable items has since been added to the status page's alert list, and there remain reports of those (myself included) who are unable to play certain digital games.

Update: Today's issues are also impacting Xbox Live members' ability to play at least certain games, including Smite.

Original Story: Following problems earlier this weekend, Xbox Live appears to be at partially down today, July 26.

Reports have been rolling in of various Xbox Live problems, including sign-in issues and an inability to see which of your friends are online. I've personally been running into the latter issue.

The official Xbox support Twitter account has sent out a message stating, "We're working hard on the current issues signing in to Xbox Live. Thank you for your patience." It also links to the the Xbox Live status page, which confirms there are sign-in issues on both Xbox One and Xbox 360.

"Xbox members, are you having trouble connecting to Xbox Live? We are currently working with our partner to find a fix for these issues," the status page states as of 12:24 PM PDT. "Thanks for being patient. Another update will be provided as soon as possible."

We'll report back with any updates. In the meantime, let us know if you're having any Xbox Live issues in the comments below.

Story updated with Xbox support tweet.