HE the Prime Minister and Minister of Interior Sheikh Khalid bin Khalifa bin Abdulaziz al-Thani met Sunday with Mayor of Wilmington, Delaware, United States, Mike Purzycki, and the delegation accompanying him during their visit to the country. They discussed co-operation between the two countries, and a number of issues of common interest. HE the prime minister also witnessed the signing of a memorandum of understanding (MoU) between Doha and Wilmington, Delaware, to exchange experiences in various fields. The MoU was signed by HE the Minister of Municipality Abdullah bin Abdulaziz bin Turki al-Subaie and Mayor Purzycki.