Attack on police in Dera Ghazi Khan leaves 22 dead , 60 wounded . Police detonated car in front of Sardar Zulfiqar Ali Khosa 's residence . Former provincial governor claims he was intended target of attack .
Attack on market in Dera Ghazi Khan leaves 22 dead , 60 wounded . Attacker detonated car in front of Sardar Zulfiqar Muhammad Khosa 's home . Former provincial governor claims he was intended target of attack .