Norway’s 89-year-old King Harald has seen his health deteriorate significantly and is now in an “extremely serious” condition, the Royal Palace announced on Thursday. The monarch has been receiving hospital treatment in Oslo since August 17 for a blood disease.

King Harald, Europe’s oldest reigning monarch, was admitted to Oslo University Hospital due to fluid retention stemming from cortisone treatment. The underlying condition is haemolytic anaemia, which is characterized by the rapid destruction of red blood cells, leading to symptoms such as fatigue and shortness of breath.

In response to the king's critical health, Queen Sonja and Crown Prince Haakon, who is currently serving as regent, have cancelled all their scheduled royal engagements. Norwegian media reported that members of the royal family, including the Queen and Crown Prince Haakon and his wife Mette-Marit, were seen arriving at the hospital.

The palace statement provided no further details regarding the king's prognosis or specific medical interventions, only stating the severity of his condition. The news has prompted concern among the public and within royal circles.

King Harald has faced several health challenges in recent years. He underwent surgery to have a pacemaker fitted and has consequently reduced his official duties. Despite these health concerns, the king has consistently maintained he will not abdicate, citing his lifelong oath to the Norwegian parliament.

His reign began in 1991, and he has been a prominent figure in Norwegian public life for decades. His commitment to his duties, even when facing personal health struggles, has been a defining aspect of his time on the throne.

The current situation places significant responsibility on Crown Prince Haakon, who is stepping up to fulfill the king's constitutional and ceremonial roles. The royal family's presence at the hospital underscores the gravity of the king's condition.

Further updates on King Harald's health are anticipated from the Royal Palace as the situation evolves. The public awaits news with concern for their long-serving monarch.