Police surround flight from Seattle after bomb threat

Police surround flight from Seattle after bomb threat
Alaska Airlines flight 342 is seen surrounded by police vehicles on the tarmac at Oakland International Airport on Monday, September 19, 2011.
OAKLAND, Calif. -- Officials say a threatening note directed at an Alaska Airlines jet from Seattle caused police to surround the flight when it landed and rescreen the passengers Monday morning.

Investigators did not provide details about the message the note contained, but said nothing dangerous was found on the aircraft.

Airport spokesman Mike McCarron said the threat surfaced when a clerk at a bookstore in the nearby San Francisco International Airport discovered a letter containing a threat against the flight.

Officials there contacted authorities, and the aircraft was met by police at Oakland International Airport when it landed at about 8 a.m.

A passenger on the flight said federal marshals boarded the aircraft and removed two passengers. The rest of the passengers were asked to leave their bags on the plane while they were taken to a secure area of the airport to be rescreened.

The plane was taken to a remote area of the airport where bomb-sniffing dogs inspected luggage.

Officials gave the all-clear at about 9 a.m. after searching the aircraft and the bags.

"At this point, we're looking to find who was responsible for this note," said Julianne Sohn, an FBI spokeswoman in San Francisco.