A day after a grenade attack at the Jammu bus stand killed two passengers, panic prevailed when a powerful Improvised Explosive Device or IED circuit was found planted outside the Jammu airport on Friday afternoon.

Security has been put on high alert at vulnerable places in the Jammu division following the incident.

Experts from the bomb disposal squad reached the airport and said the circuit appeared having been prepared for some powerful explosive that was yet to be attached with it. The IED circuit contained eight batteries that were attached with wires and was planted near the main entrance of the Jammu airport.

Meanwhile, death toll in the grenade attack went up to two on Friday when a man injured in the blast succumbed to injuries.

READ | Jammu blast: School boy who tossed grenade at bus had hidden it in tiffin box

Jammu IGP MK Sinha said injured passenger Muhammad Riyaz, a resident of Anantnag, succumbed to the injuries he had suffered when the grenade exploded.

A 17 year old youth was killed on Thursday when a teen school boy tossed the grenade at the bus in the crowded general bus stand in the heart of Jammu city. As many as 32 passengers were injured in the blast.

In a swift action, the police arrested the accused within four hours. The boy, a Class IX student of Pulwama, was trying to escape back to the Valley after carrying out the terror act. He was arrested at the Ban toll post in Nagrota on the Jammu-Srinagar highway. During sustained interrogation, he reportedly told the police that one Umar, the Kulgam commander of Hizbul Mujahideen, had assigned him the job, and that he reached Jammu early Thursday morning for the purpose.

The Jammu IGP has appealed to all shopkeepers to install CCTV cameras so that crime and militancy related incidents could be checked.