QUETTA: Two policemen and a woman were killed when unknown gunmen attacked a senior police officer's convoy in Quetta's Sariab road area on Monday.

One attacker was also killed in retaliatory fire, while two female pedestrians received bullet wounds in the crossfire, said Quetta Police Chief Abdul Razzaq Cheema.

One of the injured women later succumbed to her injuries on her way to hospital.

Zahoor Afridi, the Superintendent of Sariab police narrowly escaped the attempt on his life in Sariab's Killi Geo area.

A spokesman for the police said one assailant was killed when policemen retaliated.

He added that more police personnel were sent to the area to apprehend the culprits involved in the attack. However, no arrest was made.

The bodies of the police constables killed in the attack were shifted to Civil Hospital Quetta for postmortem investigations. The two policemen sustained bullet wounds, the hospital's doctors told DawnNews.

Read more: One person killed in Sariab road blast

Senior police and frontier corps officers also rushed to the spot in order to monitor the situation.

There was no immediate claim of responsibility for the attack.

Sariab road is considered to be one of the sensitive areas of Quetta. Militants have been targeting security forces in the area for almost a decade.

Also read: Blast and firing on Quetta's Sariab road; two injured

Quetta and other troubled parts of Balochistan have seen a sharp rise in acts of violence. The volatile province has been under the grip of an insurgency and growing sectarianism for last more than a decade.