"The plane landed without incident in Philadelphia and the passengers and crew are back in the air terminal being reaccommodated. There was a security concern but I can't comment on that," he said. The details of the incident, which fueled jitters throughout the US air travel system, were not immediately clear. According to CBS 3, a male passenger strapped a wire from his fingers to his head.
"We don't have any information now," the FBI spokesman said. "There's a plane on the ground in Philadelphia. We've got all our units there." US security services and airports have been on high alert since an alleged attempt on December 25 by a Nigerian man to set off a bomb on a plane flying from Amsterdam to Detroit. The man's device allegedly malfunctioned and he was quickly overpowered by passengers and the airliner's crew.