A former MS of Sindh Government Hospital and a former SHO were also shot dead in targeted attacks on Tuesday night.
Hospitals will observe one-hour strike in protest against the murder of Dr Nisar Sehto.
In Katti Pahari, the women are left to pick up the pieces.
An activist of MQM and a general physician were also gunned down.
Bodies shifted to Abbasi Shaheed Hospital.
Sabiullah died on the spot, while Zahid succumbed to his injuries on the way to the hospital.
The writ of the state continues to be challenged in Karachi, the last frontier in the war against militancy.
Only 3000 traffic police to control 2.7 million vehicles in the city, DIG traffic tells SC.
Four others were injured in the attack in Sherpao Colony.
“We will be happy if you can keep the people alive instead of giving compensation [to their heirs],” remarked...