According to initial details, unidentified assailants shot them outside a restaurant in Ali Akbar Shah Goth of Ibrahim Hyderi.
Eyewitness said four men on two motorcycles carried out the attack, and managed to escape the scene.
The police soon arrived at the scene and launched an investigation.
Police said Aslam Baloch, a former political worker was target of the attack.
Bodies of the deceased were moved to a nearby hospital.
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