ISLAMABAD, Feb. 17 (Xinhua) -- A group of armed men opened fire at a police station in Pakistan's southern port city of Karachi on Friday, police officials said.
According to the local police, no casualties have been reported so far from the attack, adding that the assailants hurled hand grenades before making their way into the police station building.
Security and rescue teams have reached the area and cordoned it off.
No group or individual has claimed responsibility for the attack yet.