An Airbus A320 plane crashed Tuesday in the southern French Alps, security sources said.
The crash has taken place near the small town of Barcelonnette, a commune in Alpes-de-Haute-Provence. It is around 100 kilometers north of the city of Nice.
French President Francois Hollande said no survivors are expected in the crash.
For his part, French PM Manuel Valls has said that he has activated a ministerial crisis to help coordinate efforts in the aftermath of the crash. He said he has dispatched the Interior Minister Bernard Cazeneuve to the scene of the crash.
"We of course don't know the reasons for the crash," Valls said, according to Reuters. "We obviously fear that the 142 to 150 passengers and crew died today, given the conditions of this crash."
Lufthansa's Germanwings unit said it was as yet unable to verify reports of the crash.
The crashed A320 is 24 years old and has been with the parent Lufthansa group since 1991, according to online database airfleets.net.
Source: News Agencies, Edited by website team