The toll in the Pulwama attack on CRPF convoy climbed to 40 on Friday. High-grade RDX explosive, weighing about 80 kilogram, was used in a suicide attack on a CRPF bus that killed 40 paramilitary personnel in one of the deadliest terror strikes on security forces in the Kashmir Valley in three decades, officials said on Friday.

Home Minister Rajnath Singh had also said in Srinagar that civilian traffic movement during plying of convoys will be restricted.

The officials said a post-blast investigation conducted by security agencies has found that “high-grade RDX” of about 80 kilogram was detonated in the blast that was carried out by a Jaish-e-Mohammed (JeM) terrorist after he rammed his explosive laden SUV into the ill-fated bus–HR 49 F 0637–from the left side.