Tear gas, arrests as Imran Khan supporters rally across Pakistan on third anniversary of his imprisonment

Police in Pakistan fired tear gas and arrested dozens of protesters in Karachi after supporters of former Prime Minister Imran Khan rallied to mark the third anniversary of his detention. Khan is serving a 14-year prison sentence on corruption charges, which he denies. His supporters say the cases against him are politically motivated. Hira Mustafa reports for CNA from Islamabad.