QUETTA - A Frontier Corps (FC) man was martyred and three others injured in crossfiring with militants. One of the attackers was also killed in the retaliatory action of the security personnel here on Friday. Police said unidentified miscreants attacked FC men at Saryab Road. Three militants managed to escape from the scene after the gunbattle. Bodies of martyred paramilitary soldier and the attacker were shifted to hospital for medico-legal formalities.