The demonstrations were sparked by demands for Khan’s release from jail and the resignation of the federal government over what they call rigged general elections this year.

By Asif Shahzad and Gibran Naiyyar Peshimam ISLAMABAD (Reuters) -Authorities fired tear gas on Tuesday in Pakistan's capital of Islamabad to scatter protesters demanding the release of jailed former prime minister Imran Khan,

Supporters of the ex-prime minister marched toward Islamabad, the capital. Clashes with the police left at least one officer dead, the authorities said.