sfo03.jpgAn Alaska Airlines plane was searched in Oakland this morning after a letter containing a bomb threat was discovered across the Bay at San Francisco International Airport, officials said.

The letter, which the FBI later discredited, was found in a bookstore in Terminal 1 just before 7 a.m., SFO spokesman Mike McCarron said.

The discovery prompted authorities to search Alaska Airlines Flight 342, which took off from Seattle and arrived at Oakland International Airport at 7:55 a.m.

The plane landed without incident and was immediately moved to an isolated area where the 132 passengers and crew were deplaned, taken to a holding area and re-screened, Oakland airport spokeswoman Joanne Holloway said.

The Alameda County Sheriff’s Office and the Transportation Security Administration found no signs of a bomb on the plane or in the luggage, Holloway said.

The FBI determined there was no credible threat in relation to the letter, but FBI spokesman Peter Lee reminded the public that writing such a letter is a federal crime in itself.

The passengers and crew were cleared and allowed to return to the plane to retrieve carry-on items, she said.

The FBI and the TSA are investigating the origin of the letter.

10:44 AM: An Alaska Airlines plane was searched in Oakland this morning after a letter containing a bomb threat was discovered across the Bay at San Francisco International Airport, officials said.

The letter was found in a bookstore in Terminal 1 just before 7 a.m., SFO spokesman Mike McCarron said.

The discovery prompted authorities to search Alaska Airlines Flight 342, which took off from Seattle and arrived at Oakland International Airport at 7:55 a.m.

The plane landed without incident and was immediately moved to an isolated area where the 132 passengers and crew were deplaned, taken to a holding area and re-screened, Oakland airport spokeswoman Joanne Holloway said.

The Alameda County Sheriff’s Office and the Transportation Security Administration found no signs of a bomb on the plane or in the luggage, Holloway said.

The passengers and crew were cleared and allowed to return to the plane to retrieve carry-on items, she said.

The FBI and the TSA are investigating the threat.

Zack Farmer, Bay City News

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