Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Pakistani Cleric Known as 'Father' of Afghan Taliban Assassinated by Ayaz Gul ISLAMABAD -- Unknown assailants in Pakistan have assassinated the top Islamist leader known as the "father" of Afghanistan's Taliban movement. Family members confirmed that Maulana Sami-ul Haq, 81, was resting at his home Friday in the city of Rawalpindi near the national capital of Islamabad when he was killed with a knife. The slain leader's son, Maulana Hamid-ul Haq, said his father's security guard had gone to the nearby market when the attack occurred. "When his guard returned home from the market he found my father drowned in blood," he said, adding they immediately drove him to a nearby hospital where Haq succumbed to his injuries. Nobody has yet claimed responsibility. Prime Minister Imran Khan, who currently is in China on an official visit, has condemned the assassination of the renowned cleric and ordered authorities to swiftly investigate it. Sami-ul Haq was the head of the famous "Haqqania" madrasa, or religious seminary, in Akora Khatak near the northwestern provincial capital of Peshawar. The slain cleric was internationally known as the founder of the Taliban movement, which currently is fighting the U.S.-backed government in neighboring Afghanistan. Many senior leaders of the Afghan insurgency had graduated from the seminary before the Islamist group emerged on the Afghan scene in the early 1990s and later took control of most of the civil war-torn Afghanistan. Sami-ul Haq, who was also the head of his own faction of Jamiat Ulema-e-Islam (S) Islamic party, had promised to play his role and even host the Afghan peace talks. A former member of the Senate, upper house of Pakistan's parliament, Haq was a harsh critic of the U.S.-led military intervention in Afghanistan that ousted the Taliban from power in 2001 for harboring the leadership of al-Qaida terrorist network.