December 25, 2003 at 4:31 AM EST - Updated September 26 at 6:06 PM
Authorities say there were "credible" security threats involving passengers who were supposed to fly from Paris to Los Angeles.
According to U.S. and European officials, that's why Air France canceled several flights to the U.S. today and tomorrow.
And U.S. officials are involved in intense security talks with officials from several other countries as well.
There have been intelligence reports that members of al-Qaida may be planning to use aircraft against American targets. And those concerns are again increasing.
A spokesman for France's prime minister says the decision to cancel six Air France flights came after U.S. authorities alerted France that "two or three" suspicious people were planning to board the flights.
French TV station LCI reports that U-S authorities believed members of al-Qaida may have been planning to board the planes.
Copyright 2003 by The Associated Press. All Rights Reserved.