Abu Dhabi: The UAE Presidential Court has declared a four-day official mourning period following the death of Sheikh Hamad bin Khalifa Al Thani, father of Qatar's Emir Sheikh Tamim bin Hamad Al Thani.Flags will be flown at half-mast at all government entities across the UAE, as well as at the country's embassies and diplomatic missions abroad, from Sunday, July 12, until the end of Wednesday, July 15.In a statement, the Presidential Court extended its condolences to the Al Thani family, praying that Sheikh Hamad bin Khalifa Al Thani be granted God's vast mercy, a place in Paradise, and that his family be given strength and patience during their bereavement.The announcement follows a series of condolences issued by UAE leaders after the death of Sheikh Hamad bin Khalifa Al Thani.