In this Tuesday, Jan. 2, 2018, photo, Pakistan's opposition leader Imran Khan, center, speaks to the media in Islamabad, Pakistan. Khan, Pakistan's famous cricket star turned politician, criticized U.S. President Donald Trump on Wednesday, Jan. 3, 2018 as "ignorant and ungrateful" after the U.S. leader accused it of harboring terrorists. Pic/AP/PTI

Activists of Imran Khan's Pakistan Tehreek-e-Insaf (PTI) were baton-charged in Karachi on Wednesday, when the party workers were protesting in favour of sugarcane farmers. Police also fired water cannon to disperse the party activists, who reportedly indulged in stone pelting, from Metropole in Karachi. The incident has reportedly left six people injured.