The police sources identified the dead as Shakeel Jafri, Kafil Jafri and Badar Munir whereas Babar Ali, also a lawyer, sustained injuries.
All victims, including father and son, belonged to shia community. The Shia Ulema Council has announced three-day mourning including strike on Thursday.
Four gunmen, riding two motorcycles, opened fire on Lawyers’ car when they were going back home from City Court in Arambagh area.
All four lawyers got injured after shooting and three succumbed to their wounds on the way to hospital.
Sindh Home Minister Manzoor Wassan suspended the SHO Arambagh and ordered an inquiry report within next 48 hours.
“We have noticed a few sectarian killings lately, which are aimed at creating chaos in Karachi,” said Wassan.
The Supreme Court Bar Association (SCBA) has announced a nation wide boycott of courts on Thursday.
Meanwhile, Governor Sindh Dr Ishrat ul Ebad has vehemently condemned the incident.
He directed the concerned officials for immediate arrest of those involved in the incident.
The governor expressed solidarity with the lawyers’ and Shia community and assured that every possible efforts would be made to bring the accused to justice.