#UnitedArabEmirates (UAE) President and #AbuDhabi ruler #SheikhKhalifaBinZayedAlNahyan has died at the age of 73 after battling illness for several years.br "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.