The killing of 10 foreign tourists at the foot of Nanga Parbat, Gilgit-Baltistan has led to a massive search operation being conducted in the region.
Initial reports from the law-enforcing agencies suggest that the militants escaped in small groups which has made it difficult to track them down.
A car, which the officials claimed looked suspicious has been taken into custody for investigation.
Meanwhile, rest-houses where senior officials are residing have been put on security alert following the attack.
Well-armed and well-prepared attackers dressed in police uniforms stormed the camp at the foot of Nanga Parbat late Saturday, shooting dead the climbers and a Pakistani guide at point-blank range.