It was the second attack on policemen this week in the provincial capital city of Balochistan.
Masked gunmen, riding on a motorbike, opened fire at two policemen, Mushtaq Musheer and Wajid Mehmood, who were performing security duty outside a mosque during Friday prayers, police officials said.
The gunmen fled from the scene after the attack leaving their victims serious injured.
The policemen while being transferred to hospital were succumbed to their injuries.
Two policemen were also killed in another attack on police at Sariab Road of the city last Monday.
