Pakistan's top civilian security official has vowed to "wipe out" Islamic militants in a volatile tribal region where more than 460 insurgents and 22 troops have died in 10 days of fighting. Interior Ministry chief Rehman Malik said Pakistani intelligence have reports that about 3,000 armed militants are present in the northwestern region of Bajur, which borders Afghanistan. He said they included Pakistanis, Afghan Taliban and Central Asians. Pakistani army helicopter gunships and jets have been pounding militant positions since the fighting broke out August 6. Malik told a news conference Friday, "We will wipe them out." Provincial Gov. Owais Ahmed Ghani said some 219,000 residents have been displaced by the fighting.