Khyber Pakhtunkhwa Chief Minister Sohail Afridi says the PTI will go ahead with its march on Islamabad on October 4 to demand the release of jailed former prime minister Imran Khan, despite federal officials warning that governor's rule or an emergency could be imposed in the province (a north-western region bordering Afghanistan). Ministers and the provincial governor cite worsening security and political unrest, while Afridi accuses the government of a crackdown that includes road closures and the detention of Khan's sisters. The standoff matters because it pits Pakistan's main opposition party against the federal government of Shehbaz Sharif, and could see central rule imposed on a province already struggling with militant violence.