Former Alaska Senator Ted Stevens Reportedly in Plane Crash (Updated)S

The AP is reporting that former Alaska Republican senator Ted Stevens was one of eight or nine passengers aboard an airplane that crashed in Alaska. His condition is unknown. Officials say there are "possible fatalities."

UPDATE: Sean O'Keefe, the former head of NASA, was also on board the plane, according to NBC News.

UPDATE 2: Authorities now say five of the nine people on board are dead.

[AP]