The Iranian foreign ministry expressed the country's condolences to the families of those people killed in the plane crash in France.

Foreign Ministry Spokeswoman Marziyeh Afkham expressed sorrow over the Tuesday crash which claimed the lives of its passengers.

The plane was flying to Dusseldorf, Germany, from Barcelona in Spain when it crashed in the Alps.

The plane, an Airbus A320, was carrying 144 passengers -- including 2 babies -- and six crew members, Germanwings CEO Thomas Winkelmann said at a news conference.

There were "apparently no survivors," said French President Hollande.

Germanwings said 67 Germans were on board. There were also Spanish and Turkish passengers, said Spanish King Felipe IV.

The list of nationalities of the casualties will be released as soon as the airline is certain, Winkelmann said, adding that the victims' families will be informed before a list of names will be released.

The cause of the accident has not yet been determined, the Germanwings CEO said.

Lufthansa is calling the crash "an accident."

"For the time being we are calling this an accident," a Lufthansa official said at a press conference in Barcelona today. "Everything else is speculation."