Pakistan's former premier Imran Khan was arrested as part of a graft probe, and protesters clashed with authorities in several cities across the country following the incident. Derek Wallbank reports on Bloomberg Television. Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness/ Instagram: https://www.instagram.com/quicktake/?hl=en