Philadelphia ? Two US Airways workers loading a Bermuda-bound plane grew suspicious of whether another baggage handler was allowed to be near the jet and confronted him Thursday, leading the man to flee and forcing transportation security officials to remove passengers and rescan all their luggage.

More than 100 passengers and five crew members were taken off US Airways Flight 1070 for more than four hours over the security issue.

The Philadelphia baggage handlers alerted their bosses when they saw a co-worker who was not assigned to be near the plane, FBI spokesman J.J. Klaver said.

“When they asked him to leave, he drove away from the plane in a baggage loading-vehicle,” he said.

By late Thursday, the person had not been identified or located, Klaver said. Officials believe he was authorized to be in that section of the airport, but not at that particular place.