An FIR was registered Sunday under the Unlawful Activities (Prevention) Act after two explosives-laden drones crashed into the IAF station at Jammu airport, officials said, while indicating that the case is likely to be taken over by the terror probe agency NIA.

The 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.