Unknown assailants opened fire on police officials in Sector I-eight in Islamabad that resulted in killing of a police man and injuring the other.
The attackers fled from the crime scene.
Constable Waseem died on the spot while Arif was critically injured at Sangum market in Sector I-eight, Islamabad, sources said.
A heavy contingent of police rushed to the incident place and took both the police officials to a hospital where doctors pronounced Waseem dead.
Arif is being provided medical care, but he is in critical condition.
The unknown assailants targeted a police vehicle on the round and fled after spraying bullets on the police.