Iranian Foreign Minister Mohammad Javad Zarif on Sunday wished Kuwait's 90-year-old Emir Sheikh Sabah al-Ahmad Al-Sabah a "speedy recovery" after holding "good talks" with the Gulf state's officials.
Sheikh Sabah, who ascended to power in January 2006, was seen in public last week during Muslim prayers and appeared in good health.
There has been no word on the emir's health in official media or Kuwaiti newspapers, though it is commonly made public if he is admitted to hospital or travels abroad for treatment.