Paris: The co-pilot of a Germanwings flight that slammed into an Alpine mountainside 'intentionally' sent the plane into its doomed descent, a French prosecutor said on Thursday.

Marseille prosecutor Brice Robin said the commander left the cockpit, presumably to go to the lavatory, and then was
unable to regain access. In the meantime, he said, co-pilot Andreas Lubitz manually and 'intentionally' set the plane on the descent that drove it into the mountainside in the southern French Alps.