From Fox News:
The Twitter account for U.S. Central Command has been hacked, and is carrying messages promoting the Islamic State -- including one that says, "AMERICAN SOLDIERS, WE ARE COMING, WATCH YOUR BACK. ISIS."
Another page shows what appears to be an image from a computer web cam in a military facility. An accompanying tweet says, "ISIS is already here, we are in your PCs, in each military base."
Central Command officials say they are "aware" of the issue and are "addressing" it.
"This is bad," one Central Command source told Fox News.