Pakistan's former prime minister Imran Khan has warned the government that he would begin a massive agitation march to Islamabad if political victimisation against his party continues.

Addressing a public gathering in Gujrat in the country's most populous Punjab province, Khan said that workers of his Pakistan Tehreek-e-Insaf (PTI) party were unnecessarily being targeted ever since he was ousted as the prime minister through a no-confidence motion in April this year, The Express Tribune newspaper reported on Saturday.