Aug 10, 2010 12:05 PM by Bea Karnes, News First 5
An Alaska official says military rescuers have arrived at the scene of a plane crash in southwest Alaska.
Authorities say the plane was carrying nine people, and that five were believed to be dead.
Former Sen. Ted Stevens and ex-NASA chief Sean O'Keefe were believed to be aboard, but their fate is unknown.
Alaska National Guard spokesman Maj. Guy Hayes says rescuers arrived on helicopter early Tuesday and were giving medical care to survivors. He offered no additional details, except that there were potential fatalities.