Drones, sniffer dogs, and helicopters have been pressed in the search for attackers involved in the Thursday's attack in Poonch in Jammu and Kashmir.
Five Indian Army personnel were killed and another was seriously injured on Thursday after their truck came under attack in J&K's Poonch. All the soldiers from a unit of the Rashtriya Rifles, a specialised counter-terrorism regiment deployed in Kashmir Valley.
Initial reports suggest the presence of around five terrorists and the army truck is believed to have been attacked from three different sides. After the ambush, the terrorists possibly used grenades as well as sticky bombs that set the vehicle ablaze.
So far, at least 12 people have been detained for questioning in connection with the ambush. Officials said that those detained were being questioned at various levels by the security forces to ascertain the identity of the terror group, which is believed to be active in the area for more than a year and probably comprises a snipper too.
A day after the attack, Director General of Jammu and Kashmir Police Dilbag Singh along with Additional Director General police Mukesh Singh was camping in neighbouring Rajouri district to oversee the investigation. The two officers also visited the site.
A National Investigation Agency (NIA) team headed by a Deputy Inspector General (DIG)-rank officer was also present as the agency is likely to take over the case.
Attackers had adequate knowledge of terrain: Officials
The officials said those who executed the attack are believed to have been present in Rajouri and Poonch for more than one year and had adequate knowledge of the terrain which is quite tough, they said.
The area is a hot bed of Jammu and Kashmir Gaznavi Force (JKGF) as its 'commander' Rafiq Ahmed alias Rafiq Nayi, who is a resident of the area, they added.
At present, three to four terrorist groups are active in the region of Rajouri and Poonch, the sources said.
Banned terror group People's Anti-Fascist Front (PAFF), a proxy wing of terror group Jaish-e-Mohammed, has claimed responsibility for the attack. There are reports suggesting that it was a handiwork of banned Lashker-e-Taiba group also.
The entire area of Tota-Gali-Bata Doriya, which has dense forests, has been cordoned off.
Officials said drones and sniffer dogs are being used to trace the terrorists, adding the army also conducted a recee of the area with a MI-chopper.
Officials said a high alert has been sounded in the twin border districts of Rajouri and Poonch amid heightened vigil along the Line of Control.
(With PTI inputs)