Two Air France flights that took off from the United States on Tuesday were later diverted after bomb threats, US and Canadian media said.

The Federal Aviation Administration said that the flights were diverted becuase of security issues. 

An Airbus A-380 that departed from Los Angeles landed in Salt Lake City, where passengers and crew were being deplaned and transferred to the terminal, an FAA spokesman said.

A separate flight that left Dulles International Airport outside Washington was diverted to Halifax International Airport in Nova Scotia also because of an unspecified security concern, the FAA said.

Both planes have landed and passengers disembarked, the reports said.