As President Pervez Musharraf appeared on state-controlled radio and television to condemn the activities of some Baloch tribal chiefs, one security man was killed and two injured badly in Kohlu the area where Nawab Khair Bux Marri dominates the society and at present is engaged with government forces in rocket firing and armed clashes. A soldier of the Frontier Corps was killed and his two colleagues were injured, sources said yesterday. "Militants had planted a land mine between Dera Bugti and Kohlu which was exploded with a remote control device killing a soldier," sources said.Beside planting land mine on a road linking Dera Bugti with Kohlu where normally Frontier Corps men conduct day-and-night patrolling to weed out militants, a few rockets were also fired in Kahan where the FC has established its local headquarters in a fort. Former Chief Minister of Balochistan Akhtar Mengal claimed that so far more than 50 people have lost their lives in armed clashes with the security forces.