WASHINGTON - President Asif Ali Zardari and several dignitaries from around the world will attend on Friday the memorial service of top US diplomat Richard Holbrooke who died here last month. The memorial service for Holbrooke will take place at the Kennedy Centre in Washington. In his capacity as the Special US Special Representative for Afghanistan and Pakistan, Holbrooke was Obama Administration's point man for the Pak-Afghan region. "There are a number of world leaders who will be coming to the memorial, and I would expect that there would be some meetings around that not only from South Asia, but from other parts of the world as well," State Department Spokesman P J Crowley said. President Barack Obama and Secretary of State Hillary Clinton will speak at the memorial event. Former President Bill Clinton will also attend the event. Meanwhile, Pakistan's Ambassador to the United States Husain Haqqani said President Zardari will discuss diplomatic, economic and security ties with Mrs Clinton and also have meetings with other senior administration officials. "Notwithstanding the political noise that is frequently manifested in parts of media in both countries, Pakistan and the United States are engaged in a very robust strategic partnership aimed at creating stability in South Asia," Haqqani told Washington-based Pakistani journalists at the embassy. Citing Vice President Joseph Biden's visit to Islamabad and President Zardari's upcoming meetings later this week in Washington and a series of other high-level strategic meetings in the recent months, Haqqani said the quality and frequency of the contacts between the two partners has clearly improved. Haqqani also made it clear that Pakistan's concerns vis--vis India have to be addressed for sustainable peace in South Asia. "We have security concerns in relation to our eastern neighbour, which cannot be ignored while creating a security architecture in the region," he said in reply to a question about Islamabad's concerns about Indian activities in Afghanistan. The dignitaries at Holbrooke's memorial service will include three sitting heads of state, 20 foreign ministers, 125 heads of diplomatic missions, and other friends of the deceased hailing from academia, the media, and his private life. Swedish Foreign Minister Carl Bildt. Staffan de Mistura, the top UN envoy in Afghanistan, will also be attending the memorial, a State Department official said. Holbrooke will additionally be honoured by the planned attendance of a large chunk of the international network of Special Representatives for Afghanistan and Pakistan (SRAPs), a state department official was cited as saying. Holbrooke was instrumental in building this network of officials who would meet periodically to coordinate international activity regarding Afghanistan. Special Representatives are coming to Washington for Friday's event from Australia, Canada, Denmark, Egypt, the European Union, Finland, France, Germany, Italy, Japan, Turkey, the UAE, and the United Kingdom, the State Department official said.