Two explosions were reported at the high security technical area of Jammu airport during the wee hours of Sunday, officials said adding that the blasts occurred within a gap of five minutes. With the Jammu and Kashmir Police suspecting the use of drones with payload to carry out blasts at the high-security Air Force Station, the incident marks the entry of new type of warfare in the valley. Drones have earlier been used to transport and drop weapons but this is the first incident in the 30-year-long insurgency in J&K when drones have been used to carry out an attack.