President Asif Ali Zardari has called Sindh Governor Dr. Ishrat-ul-Ebad Khan to Islamabad to review the present situation of Karachi in the backdrop continuing targeted killings in the metropolis. According to sources, the Sindh Governor talked to the Prime Minister on phone and expressed his concern over the killings of innocent people in the metropolis as well as his reservations over a 'forceful group of government that is allegedly providing a cover to criminals. According to latest reports, Governor Sindh Dr Ishratul Ibad Khan has had his resignation ready and is expected to present it to President Asif Ali Zardari at their decisive meeting later today.