The attack triggered a shootout that left two security officials dead and five wounded.
Abdul Jabbar, a security official was quoted by Reuters as saying, "They were armed with AK-47 rifles and rockets. We successfully repulsed the first attack. They attacked again and then there was an exchange of fire that lasted for about two- and-a-half hours."
He added, "There were casualties on the other side also but they took away their bodies and we don't know how many of them were killed or wounded."
While no organisation has yet claimed responsibility for the dreadful attacks, analysts see it as another of the still-many-to-come attacks to avenge the killing of al-Qaeda supremo Osama bin Laden.
In the first confirmed attacks to avenge the death of Osama bin Laden, two suicide bombers blew off themselves killing 80 cadets of a Pakistani paramilitary academy last week.