King Salman bin Abdulaziz Al-Saud of Saudi Arabia has been diagnosed with lung inflammation and is currently receiving treatment with antibiotics in Jeddah.
As a result, his son Crown Prince Mohammed bin Salman has postponed his planned trip to Japan.
The Japanese Foreign Ministry expressed its intention to reschedule the postponed trip of Crown Prince Mohammed bin Salman to Japan at a later date.
Prior to this announcement, bin Salman had met with US National Security Adviser Jake Sullivan in the eastern city of Dhahran, as reported earlier on Sunday.