Pakistan Tehrik-e-Insaaf Chairman Imran Khan said on Wednesday that an army operation in Karachi is not a permanent solution.
Imran Khan demanded that the federal government impose Governor's Rule in Sindh.
"I have always opposed military operations," said the PTI chief.
He added that a military operation in Karachi is as effective as "treating cancer with a Disprin".
"If I was governor I could end the violence in three months," he added.
Ameer Syed Munawwar Hassan of the Jamaat-e-Islami said his party cannot support the deployment of army in Karachi either, claiming that such a move will worsen the situation.
Talking to the media at Lahore Press Club, he said a solution without the Muttahida Qaumi Movement (MQM) should be pursued to restore peace in Karachi.
Munawwar Hassan said the MQM had been a part of the government for the last ten years and accused its leaders of disturbing peace in Karachi.
He said that August 26 will be marked as a day of solidarity all over the country to express sympathies with the people of Karachi.