The UAE's President Sheikh Khalifa bin Zayed Al-Nahyan died Friday aged 73 after a years-long battle with illness, triggering a period of mourning and a handover of power in the oil-rich Gulf state.
Sheikh Khalifa, who was in office during a time of rocketing fortunes for the United Arab Emirates but was rarely seen in public, is likely to be replaced by his half-brother, Abu Dhabi Crown Prince Mohammed bin Zayed, who was already viewed as the country's de facto ruler.