A deputy superintendent of traffic police and his driver were shot dead in Karachi's Azizabad area on Friday morning, police said.
As per initial reports, DSP Hanif was on his way to office from home when unidentified gunmen opened fire on his vehicle in Hussainabad neighbourhood of Azizabad, said SSP Central Muqadas Haider.
The bodies of DSP Hanif and the driver, constable Sultan, were shifted to Abbasi Shaheed Hospital.
Soon after the incident, police and other law enforcement personnel reached the scene and started an investigation after collecting evidence.
Expressing grief over the incident, Sindh Home Minister Suhail Anwar Siyal sought a report into the killings from the additional inspector general.
The home minister directed that security be kept on high alert in the metropolis and efforts be made to arrest the attackers soon.
Inspector General of Police (IGP) Sindh A.D. Khawaja also sought a detailed inquiry report into the incident from deputy inspector general – west.
Additional IG Karachi Ghulam Qadir Thebo while talking to reporters said bullet shells of a 9mm pistol were recovered from the scene.
He said the militants involved in last two attacks on police personnel have been traced, and those behind today's killings will be brought to book as well.