Police men gather at the site of the crime.

At least three policemen including an official were killed in firing inside a police station in Pakistan's southwest Quetta city on Tuesday, local Urdu media reported.

Dawn News reported that the incident happened when a constable opened fire at the Senior House Officer (S.H.O) Noor Bux Mengal, killing the official and his bodyguard right at the spot at Eastern Bypass area of Quetta, the capital city of the country's southwest Balochistan province.

Following the attack, the cops inside the police station rushed to the S.H.O's office and shot the attacker dead.

Police said that investigation into the incident is being made.

This is the second incident of firing on the law enforcement agencies in the province over the last 24 hours.

Earlier on Monday evening, three security personnel were killed when some unknown gunmen sprayed bullets on their vehicle in Mustang area of the province.

No group has claimed responsibility for either of the attacks yet.

Source : XINHUA