"Other international leaders—including former Indonesian president Susilo Bambang Yudhoyono, Malaysian Prime Minister Najib Razak, Singaporean Prime Minister Lee Hsien Loong, President of the United Arab Emirates Sheikh Khalifa bin Zayed Al Nahyan, and Vice-President and Prime Minister of the United Arab Emirates and emir of Dubai Sheikh Mohammed bin Rashid Al Maktoum—also paid tribute to Kalam.In a special gesture, Secretary-General of the United Nations Ban Ki-moon visited the Permanent Mission of India to the UN and signed a condolence book.