Two Muhafaiz Force personnel were injured when unidentified armed men opened fire at them during routine patrol here in Lahore on late Thursday night. According to police unknown armed car riders opened fire at two personnel of Muhafiz Force at Copper Road area while they were on routine patrol. As a result of firing the two personnel sustained critical wounds. The attackers managed to flee from the scene after the attack. The injured Muhafiz Force personnel were shifted to hospital where according to hospital sources condition of both was serious.