( CNN ) -- Authorities evacuated a Bermuda-bound flight at Philadelphia International Airport in Pennsylvania Thursday after one of three people loading the plane did n't appear to belong and suddenly left the area , police said . It appeared that the man in question was properly credentialed to be in a secure area , but was working on a plane that he was n't supposed to , FBI spokesman J.J. Klaver said . When he was questioned by the other baggage handlers , the person left in a baggage loading cart , he said . US Airways Flight 1070 -- which police said was bound for Bermuda with 102 passengers and five crew members -- was towed to a secure part of the airport , where baggage was removed from the plane to be screened by bomb-sniffing dogs . The plane tested negative for explosives , and the incident is not believed to be terror-related , said Klaver . The investigation was ongoing , he added . In addition , no narcotics were found on board the plane , said Stephen Sapp of Customs and Border Protection . `` There 's nothing explosive , nothing hazardous , '' Klaver said . He also said that there was no apparent failure in airport security processes . Flight 1070 finally departed for Bermuda nearly six hours late . Federal and local police at the airport had been searching for a man in uniform who was not wearing identification on the tarmac , a law enforcement official told CNN . `` This could be a suspicious person or it could be nothing , '' the official said . The rest of the airport was fully operational and not affected by the incident , said spokeswoman Victoria Lupica . The passengers remained in the terminal , said Todd Lehmacher , spokesman for US Airways . The airline hoped to get them back on the plane and headed for Bermuda once authorities allow it , he said . CNN 's Carol Cratty , Jeanne Meserve , Ross Levitt and Deborah Feyerick contributed to this report .
NEW : Flight departs nearly six hours after scheduled . The flight was delayed by almost an hour and a half due to bad weather in the area. The incident is not believed to be terror-related . US Airways Flight 1070 was bound for Bermuda with 102 passengers .