Deutsche Lufthansa AG canceled celebrations of its 60th anniversary next month in the wake of last week’s tragedy in the French Alps and will instead broadcast a memorial service for victims of the airline’s worst-ever crash.

Festivities planned for April 15 to mark Lufthansa’s refounding a decade after the end of World War II have been scrapped “out of respect” for those who died on Germanwings Flight 4U9525, Lufthansa said. The carrier will instead provide live coverage of a ceremony in Cologne Cathedral on April 17.

The official state commemoration in the city where Lufthansa and Germanwings are headquartered will be attended by the families and friends of those killed. German Chancellor Angela Merkel and President Joachim Gauck will also be present.

Investigators probing the crash at Lufthansa’s discount unit say all the evidence suggests the Airbus Group NV A320’s first officer deliberately flew the plane into a French mountainside, killing himself and the 149 others on board.

German prosecutors said Monday that Andreas Lubitz, who ignored a medical note putting him on sick leave on the day of the crash, had been treated for suicidal behavior years ago.

Lufthansa had previously suffered five fatal crashes involving passenger and cargo planes that together killed fewer people than the March 24 tragedy.

This article was written by Richard Weiss from Bloomberg and was legally licensed through the NewsCred publisher network.

Photo Credit: Lufthansa aircrafts sit on the tarmac at Frankfurt airport. Reuters