UPDATE: Sources from within Beale Air Force Base told KNVN that the plane crashed in the Sutter Butte Mountains was the training version of a U-2 spy plane.
There is still no word on the condition of the pilots, however, there were two parachutes seen in the sky around the time of the mayday call at 9:10 a.m.
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Area emergency crew are responding to a report of a military plane crash with two on board somewhere in the Sutter Butte mountain range in Sutter County.
There are unconfirmed reports that two open parachutes were seen parachuting in the air near the aircraft. The crash may have involved U2 spy plane.
The U.S. Forest Service is also reporting 20 acre fire in the area of the potential wreckage.