Meadows Field Airport in Bakersfield, Calif., has been re-opened following a hazmat scare, an FAA official said.
Ian Gregor said the airport was re-opened at 11 a.m. local time.
Earlier Tuesday, federal officials had suspended flights going to and from the airport after a hazardous substance was found in a piece of luggage.
Suzanne Trevino, a spokeswoman for the Transportation Security Administration, says the material was found in a checked bag Tuesday morning at 7:30 a.m. local time. The discovery closed down the airport around 8:20 a.m., and officials called in a hazardous material crew and bomb squad as a precaution.
When the TSA agents screened the passenger's bag, it tested positive for a hazardous substance.
Trevino won't immediately confirm what was found in the bag, but says it was not a bomb.
Bakersfield Fire Chief Nick Dunn said the hazardous material was inside of a bottle that released fumes. Two TSA officers who were exposed to the fumes were taken to a hospital for evaluation.
The man who owns the bag has been detained.
A reporter for KBAK-TV said she spoke with the director of Meadows Field airport who said he does not know if this is a false alarm.
Trevino says officials don't believe the incident is terrorism-related.
The Federal Aviation Administration is holding flights going to and from Bakersfield until at least 10 a.m. local time. At least one SkyWest Airlines flight from San Francisco has been diverted to Los Angeles.
The Associated Press contributed to this report.