US hit by massive Internet outage

Comcast's Internet service, Xfinity, is facing outages across the United States.

A user-generated outage map on DownDetector.com showed that it was down in large cities like San Francisco, Los Angeles, Seattle and Boston.

Confirming the reports in a tweet on its customer care account, Comcast wrote, "Some customers are having issues with their XFINITY Internet service. We apologize & appreciate your patience while we work to fix."

Later, Comcast revealed that this wis an issue with an "external network," and that they were still investigating.

As of 12:40pm Pacific, Comcast tweeted that the issues should now be fixed.