Watch: Imran Khan takes oath as Pakistan PM

Imran Khan was sworn in as Pakistan's new prime minister today, nearly 22 years after the former cricket hero entered politics. Khan, 65, the chairman of the Pakistan Tehreek-e-Insaf (PTI), was administered the oath of office by President Mamnoon Hussain at a simple ceremony held at the Aiwan-e-Sadr (the President House) in Islamabad.