Japan's Emperor Emeritus Akihito turned 90 years old on Saturday with celebrations being held at his residence.

His birthday celebrations were canceled or downsized following the outbreak of COVID-19. But this year he is receiving more guests than last year.

In the morning, Emperor Naruhito and Empress Masako as well as their daughter, Princess Aiko, visited the residence of the Emperor Emeritus and his wife, Empress Emerita Michiko, at the Akasaka Estate.

Crown Prince and Princess Akishino and Prime Minister Kishida Fumio are also expected to visit the residence.

The Imperial Household Agency says the Emperor Emeritus was diagnosed with heart failure in July last year. It says his condition has remained relatively stable over the past year with treatment.

Agency officials say the Emperor Emeritus is leading a calm and well-regulated life together with his wife every day. The couple read newspapers and watch news on television. They are particularly concerned about news of heavy rains that hit many areas in Japan. The couple also take a keen interest in the issue of war and peace.