(Source : cnn) Authorities evacuated a Bermuda-bound flight at the Philadelphia International Airport in Pennsylvania Thursday after one of three people loading the plane failed to produce identification and then disappeared, police said. US Airways Flight 1070 was bound for Bermuda with 102 passengers and five crew members, police said. The aircraft was towed to a secure part of the airport, where baggage was removed from the plane and was being screened by bomb-sniffing dogs. The plane tested negative for explosives, and the incident was not believed to be terror-related, said FBI spokesman J.J. Klaver, but the investigation was ongoing. Police were expected to speak to reporters Thursday afternoon. Federal and local police at the airport were 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. Two of three baggage handlers loading the plane did not recognize the third man and noticed he lacked an identification badge, according to a law enforcement official. The two confronted the man and asked him who he was. The man left the area and was still being sought by police. 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 Lemacher, spokesman for US Airways. The airline hopes to get them back on the plane and headed for Bermuda once authorities allow it, he said.