About 100 passengers were evacuated from a plane destined for Dallas after San Antonio International Airport received a bomb threat, authorities said. The airport received several calls Saturday saying a bomb was in Terminal One, airport spokesman David Hebert said. Around 10:30 a.m., a caller referred specifically to the Dallas-bound flight, according to AP. Hebert declined to release the name of the airline, the San Antonio Express-News reported. The passengers were evacuated and the plane was taken to a safe zone where airport police and a canine unit found nothing during a search, Hebert said. The passengers were allowed to board again after a two-hour wait. The FBI is investigating, he said. The bomb threat was one of three made late Friday and early Saturday in San Antonio during Fiesta, a 10-day citywide party. None of the threats proved dangerous. -- SPA