As noted at a variety of sources, including the official AF news outlet, an Air Force F-22A has crashed while performing a test mission near Edwards AFB, CA.  The condition of the pilot has not been released.

UPDATE: CNN, Fox, and Edwards AFB public affairs now report that the pilot was a Lockheed Martin civilian (Air Force veteran) who did not survive the crash:

Lockheed Martin said the test pilot, David Cooley, 49, of Palmdale, California, joined the company in 2003 and was a 21-year veteran of the U.S. Air Force.

Our thoughts and prayers are with his family and friends, amidst the tragic reminder of the danger of the fighter (and test) pilot profession.