Die Welt, a German newspaper, cited an unidentified senior investigator who said that Lubitz suffered from a severe "psychosomatic illness" and that German police seized prescription drugs that treat the condition. Lubitz suffered from a "severe subjective burnout syndrome" and from severe depression, the source told Die Welt.

The New York Times also reported that antidepressants were found during the search of his apartment. CNN has not been able to confirm the reports.

French authorities have said that Lubitz appeared to have deliberately crashed Germanwings Flight 9525 into the Alps on Tuesday as it flew from Barcelona toward Dusseldorf, Germany, with 150 people on board.

Investigators continued to work Saturday to piece together the secret life of Lubitz, who officials say was hiding an illness from his employers. He had been declared "unfit to work" by a doctor.

They were expected to question his relatives, friends and co-workers as they try to pin down what could have prompted the seemingly competent and stable co-pilot to steer a jetliner full of people into a mountainside.

As their efforts continued, dozens of people attended a remembrance ceremony for the victims of the crash at a church in a nearby town, Digne-les-Bains. Most of the people on the plane were from Germany and Spain.

Relatives of the victims and local residents also gathered Saturday afternoon by a simple stone memorial set up near the crash site, in the village of Le Vernet. Flowers have been laid there, in the shadow of the snow-covered peaks of the French Alps.

 

(CNN)