Over the years, a few Viking vessels have experienced high-profile operational incidents that drew media attention. Most notably, the Viking Sky ocean ship suffered a total engine blackout during a severe bomb cyclone storm off the coast of Norway, forcing a dramatic helicopter evacuation of hundreds of passengers in heavy seas. Additionally, Viking's European river cruise fleet occasionally faces temporary disruptions during extreme weather events, such as historic droughts or heavy rainfalls causing high or low water levels on rivers like the Rhine and Danube, which can temporarily interrupt standard sailing itineraries and require bus transfers.