The deceased belonging to the Christian community were travelling in a rickshaw when a pair of motorbike-borne unidentified attackers fired upon them, as reported by the Dawn.
A police official Muhammad Anwar Khokhar confirmed the incident while a police team was dispatched to the location of the incident for conducting an investigation.
No terror group has claimed the responsibility for the attack.
In a separate firing incident in Quetta on Monday, three people were killed and four were injured.
Police said the deceased belong to Bangulzai tribe, adding that the incident appears to be the result of a tribal enmity. (ANI)