A threat made Tuesday morning against an American Eagle flight at Los Angeles International Airport was not credible, FBI officials said.
The threat was reported at 8:37 a.m. PDT against Flight 5931, which was flying from Houston to Los Angeles, said Polly Tracey, a spokeswoman for American Airlines.
The nature of the threat was not immediately clear.
"While an assessment is always conducted following a threat, there is no known credible threat to the aircraft or passengers at this time," FBI spokeswoman Laura Eimiller said.
The FBI is working with airport police to "determine the person or group responsible for making the threat," she said.
The flight, operated by Compass Airlines, departed at 7:18 a.m. CDT from Houston George Bush Intercontinental Airport, according to the website Flightaware. The plane landed at 8:43 a.m. PDT safely on Runway 25 Left at LAX and taxied to a remote pad.
Officials said 67 passengers and four crew members were aboard the Embraer 175 aircraft.
After exiting the plane, passengers boarded buses and were taken American Airline terminals to catch connecting flights.
Police worked with bomb-sniffing dogs and the Los Angeles Fire Department to screen the flight.
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11:11 a.m.: This story was updated with FBI officials saying the threat was not credible.