Hanoi, May 28 -- Leaders of foreign countries have extended their condolences to leaders of the Party and State and people of Vietnam over the passing of former State President Tran Duc Luong. The sympathies were sent by Singapore's President Tharman Shanmugaratnam and Senior Minister Lee Hsien Loong; King of Saudi Arabia Salman Bin Abdulaziz Al Saud; the United Arab Emirates (UAE)'s President Mohamed bin Zayed Al Nahyan, Vice President and Prime Minister Mohammed bin Rashid Al Maktoum, and Vice President Mansour bin Zayed Al Nahyan; President of Palestine and Chairman of the Palestine Liberation Organisation (PLO) Mahmoud Abbas; the Government of Venezuela; President Daniel Ortega and Vice President Rosario Murillo of Nicaragua. In their...