Lufthansa chiefs at Alps crash site

The heads of Lufthansa and its low-cost airline Germanwings are visiting the site of the crash that killed 150 people, amid mounting questions about the co-pilot and how much his employers knew about his mental health.

Lufthansa chief executive Carsten Spohr and Germanwings head Thomas Winkelmann touched down by helicopter in Seyne-les-Alpes, near the ravine where the A320 jet shattered into thousands of pieces on March 24.