The Emir of the sisterly State of Qatar, His Highness Sheikh Hamad bin Khalifa Al Thani, received a written letter from Eritrean President Isaias Afwerki, pertaining to bilateral relations between the two countries as well as issues of mutual interest. The letter was delivered by the Eritrean Ambassador, Mr. Ali Ibrahim Ahmed as he was received by His Highness the Emir here in Doha today.