Mohammad Najibullah Ahmadzai (Pashto/Dari: محمد نجیب‌الله احمدزی, Pashto pronunciation: [mʊˈhamad nad͡ʒibʊˈlɑ ahmadˈzai]; 6 August 1947 – 27 September 1996), commonly known as Dr. Najib, was an Afghan politician who served as the General Secretary of the People's Democratic Party of Afghanistan, the leader of the one-party ruling Democratic Republic of Afghanistan from 1986 to 1992 and as well as the President of Afghanistan from 1987 until his resignation in April 1992, shortly after which the mujahideen took over Kabul. After a failed attempt to flee to India, Najibullah remained in Kabul. He lived in the United Nations headquarters until his assassination by the Taliban after their capture of the city.