Interior Minister Sheikh Rasheed cautioned of further terrorism-related incidents in Islamabad after a policeman was killed and two others were wounded at a check-point.
Two militants were also killed in the gun fight on Monday at a police check-point near the Karachi Company police station.
Speaking with media at the funeral of the martyred policemen, Rasheed said that the incident was not a robbery or theft. He said that the event signified that terrorist incidents had begun taking place in Islamabad.
The interior minister added that the event was the first of the year and authorities must remain alert. Rasheed said that the authorities had traced the terrorists’ “sleeper cell” via their motorcycles.
A spokesman for the police said that wounded officers were being treated at the Pakistan Institute of Medical Sciences (PIMS).
No one has taken responsibility for the attack and investigations are still underway.
Security forces have often been the target of terrorist attacks in Pakistan, but attacks in the capital Islamabad have been rare.
The event comes a week after militants assaulted an army post in the northwest region of the country in which one Pakistani soldier was martyred.