'Will fight till...': Why Imran Khan isn't willing to step down as Pakistan PM

Pakistan's Prime Minister Imran Khan is due to address the nation on Friday after the Supreme Court ruled he acted unconstitutionally in blocking an attempt to oust him - a decision that could end his premiership in days. Khan said on Twitter late on Thursday he had called a cabinet meeting for Friday, after which he would address the nation. He signalled his defiance with a cricketing term: "My message to our nation is I have always and will continue to fight for (Pakistan) till the last ball," he said. Watch the video for more.