The website of airline Germanwings has stopped working following reports that one of its planes has crashed in southern France.
The company has not confirmed the crash but has advised people to check its website for updates:
INFO: We have recently become aware of media reports speculating on an incident though we still do not have any own confirmed information...
During a visit to the crash site, the boss of Lufthansa has avoided reporters' questions about the co-pilot's known depression.
Newly-released footage shows Germanwings co-pilot Andreas Lubitz in flight around ten years ago during his time as a trainee.
Pilots with a history of depression should not be banned from flying, a leading British psychiatrist has said.