Security sources say the “pressure fuse” used in the bombs point to Pakistan military expertise.
The “pressure fuse” used in the bombs dropped on the Indian Air Force (IAF) station in Jammu through drones in a first-of-its-kind attack indicates that some elements of the Pakistan Army or the ISI helped terror group Lashkar-e-Taiba in fabricating the IEDs, according to security sources.
The improvised explosive device (IED) that pierced the rooftop of one of the IAF buildings at the Jammu airport carried less than 1 kg of RDX and a cocktail of other chemicals, whereas the one that was dropped on the ground contained a little over 1 kg of the deadly explosives along with some ball bearings, they said. The sources said the IED used in the June 27 attack “definitely” contained the technical expertise of the Pakistani military. The ‘pressure fuse’ used is similar to the ones used by the Pakistani Army.
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A ‘pressure fuse’ is generally used in minefields, anti-tank mines and those dropped by the air force in the fuselage between the explosive and main detonator of a shell or an IED. The explosive devices are activated by the pressure of either falling on the ground with force or some individual or vehicle passing over it.
However, in these sophisticated IEDs, the ‘pressure fuse’ had been deployed at the nose of the bombs so that they trigger with a force after falling on the ground, the sources said. Most of the artillery shells and mortar bombs have this type of fuse, and that is why they don’t explode in the air but on impact, they explained.
Director-General of Jammu and Kashmir Police, Dilbag Singh, had said earlier that Pakistan-based terrorists of Lashkar-e-Taiba were suspected to be behind the bombing of the IAF station.
The National Investigation Agency took over the investigation into the attack .
Two IAF personnel were injured in the explosions that took place within six minutes of each other. The first blast ripped off the roof of a single-storey building at the technical area of the airport manned by the IAF in Satwari on the outskirts of Jammu. The second one was on the ground.
Also read | Attack using drones aimed at IAF assets: Air Chief
Notably, of late, Pakistan has been procuring armed drones from China and Turkey.
The sources said drones could fly up to three hours and could be monitored and manoeuvred remotely through the Global Positioning System (GPS) technology. The aerial distance from the Jammu airport to the international border is 14 km.
In September last year, five Lok Sabha members from the YSR Congress, in a written question, had asked whether the government had issued any guidelines in the light of the possibility of drones being used as weapons of attack on high-security installations.
Also read | Drones favoured tool of Pakistan-based terror outfits
The then Minister of State for Home G.K. Reddy had stated, “In order to counter the threat of drones in the country, necessary guidelines have been issued, which include measures to be taken by the Central and the State governments in consultation with the security agencies.” Earlier in March last year, four Lok Sabha members and a BJP leader had asked whether the government had formulated a comprehensive policy to prevent attacks by unmanned aerial vehicles (UAVs) on vital security installations.
In a written reply, the then Minister of State for Civil Aviation Hardeep Singh Puri said the government had issued a standard operating procedure to prevent drone attacks on vital installations.
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