UAE President and Abu Dhabiruler Sheikh Khalifa Bin Zayed dies. 5 things to know about him

United Arab Emirates (UAE) President and Abu Dhabi ruler Sheikh Khalifa Bin Zayed Al Nahyan has died at the age of 73 after battling illness for several years.

"The Ministry of Presidential Affairs has mourned to the #UAE people, Arab and Islamic nations and the world the death of President His Highness Sheikh Khalifa bin Zayed Al-Nahyan," the official WAM news agency tweeted.