The militant toll in battles between security forces and militants in the Och area of Dera Bugti rose to 33 on Sunday, while at least 9 security personnel and a Pakistan Petroleum Limited (PPL) engineer had also been killed since the clashes started, Aaj TV reported on Sunday. The FC also arrested nine injured militants, recovering a huge cache of arms from their possessions and was using helicopters and armoured carriers in the search for militants. Meanwhile, a powerful bomb detonated outside the Frontier Corps fort and damaged its wall and two power pylons were blown up when powerful bombs detonated in the in the Kohlu district, sources said. No loss of life was reported as a result of the blasts, the channel said.