Party General Secretary Nguyễn Phú Trọng, President Nguyễn Xuân Phúc, Prime Minister Phạm Minh Chính and National Assembly Chairman Vương Đình Huệ on Friday cabled messages of condolences to Chinese leaders over the death of former General Secretary of the Communist Party of China (CPC) Central Committee and former President of China Jiang Zemin.