5 Years Later Another Plane Diverted

Federal authorities diverted a San Francisco-bound United Airlines jet to Dallas as a precautionary security measure on Monday after finding an unclaimed BlackBerry on

board.

Officials had also found and removed an unidentified backpack from the jet before it left Atlanta, said Transportation Security

Administration spokeswoman Yolanda Clark. She described the jet, United flight 351, as secure and said it was diverted to Dallas "out of an abundance of caution."

"The aircraft is secure," Clark said. She said there was no indication that the hand-held computer was being used as an explosive device or trigger.

The flight was diverted on the fifth anniversary of the Sept. 11, 2001, terror attacks.