According to German prosecutors, the co-pilot of Germanwings airlines who is suspected of intentionally crashing the plane into the French Alps concealed details of an illness.
According to BBC, there were torn-up sick notes at Andreas Lubitz's home, which included one for the day of the crash that killed 150 passengers and crew members.
A German hospital revealed that he had been a patient recently but denied reports he had been treated for depression.
The EU's aviation regulator called on airlines to adopt new safety rules.
The European Aviation Safety Agency (EASA) has ordered that at least two crew members should be present in the cockpit at all times in future.
