A Muttahida Qaumi Movement (MQM) delegation met Interior Minister Chaudhry Nisar on Wednesday.
During the meeting the Karachi operation came under discussion, sources said.
The party discussed the issue of its missing workers, and extra judicial killings, sources added.
Farooq Sattar and Khalid Maqbool Siddiqui represented MQM.
It was learnt that Chaudhry Nisar told the delegation that he will address their issues.