The co-pilot of the Germanwings plane which crashed in the French Alps in March may have practised a rapid descent on a previous flight, the German newspaper Bild has said.
A memorial service for the victims of last month's Alps plane crash is to be held at Cologne Cathedral.
Lufthansa said the Germanwings co-pilot suspected of deliberately crashing his plane into the Alps had disclosed about his depression earlier
The co-pilot of the crashed Germanwings plane, Andreas Lubitz, had received treatment for suicidal tendencies before getting his pilot license
Five days after Germanwings flight 4U 9525 crashed in the French Alps killing all 150 on board, investigators say they have isolated 78 DNA strands.
The co-pilot suspected of crashing a German airliner into the French Alps, killing himself and 149 others, knew the region from gliding holidays
