From LH app:
"Lufthansa plans to operate a flight from Muscat (Oman) to Frankfurt on behalf of the German government on the night of March 4 to 5 to fly German citizens from the region to Germany. An Airbus A340-300 long-haul aircraft will be used. As this flight is being operated on behalf of the German government, it is not possible to make a regular booking through Lufthansa. German citizens currently in the region can register on the crisis prevention list of the Federal Foreign Office (ELEFAND)."