The incident comes days after a drone attack at the IAF station in Jammu.
Two explosives-laden drones crashed into the IAF station at Jammu airport in the early hours of Sunday, perhaps the first time that suspected Pakistan-based terrorists have used unmanned aerial vehicles in an attack, officials said.
The explosions took place around 1.40 am 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 area on the outskirts of the city. The second one was on the ground.
Officials have also said the explosive material dropped by the drones might have been manufactured using a cocktail consisting of RDX, but a final confirmation was still awaited.
The NIA has taken over the charge of the investigation into the incident.
The drones that dropped the explosives were either flown back across the border or to some other destination during the night, they suspect.
The aerial distance from the Jammu airport to the international border is 14km.
(With inputs from agencies)