On Tuesday, Air France was forced to divert two of its passenger jetliners that were leaving a pair of American cities bound for Paris. The American flights that were diverted were heading out from Washington, DC and Los Angeles. The Washington, DC plane was forced to land in Halifax, Nova Scotia. The Los Angeles plane was diverted and landed safely in Salt Lake City.

Officials announced that both planes had received bomb threats, but after both were carefully searched no explosives were found to be on board either airliner, according to The Washington Post. After both planes were searched they were moved to secure locations. The bomb threats were anonymous and police have no leads.

Both planes were full. The Washington, DC flight was a Boeing 777 that had 298 passengers and crew, and the Los Angeles flight was an Airbus A380 that carried passengers and crew numbering 497 people. It is not known when the flights will resume and be allowed to fly on to Paris.

In Halifax, authorities said that passengers and crew were being made as comfortable as possible as they were awaiting word from Air France as to whether another plane was being sent to pick them up. In Salt Lake City, officials report that the FBI has taken over and are searching the plane again with dogs trained to uncover explosives. The passengers at Salt Lake City were removed to the terminal where they continue to wait.

Some of the passengers at Salt Lake City are being interviewed by the FBI regarding the situation. According to some passengers, the huge double decker Airbus A380 was suddenly diverted, as flight attendants hastily took away food trays and issued emergency instructions. The pilot tried to quietly reassure all 497 on board that the crew was highly trained for such emergencies.