New Delhi: In the wake of recent developments in Jammu and Kashmir, and resulting tension with Pakistan, the aviation security agency Bureau of Civil Aviation Security (BCAS) has asked all airports to step up security, saying that civil aviation has emerged as a soft target for terrorist attacks.

In an advisory issued on August 6, BCAS has cautioned the state governments, national and private airport operators.

Vehicles entering airports would be subjected to intensive random security checks.

Against the backdrop of the recent developments pertaining to Jammu and Kashmir and additional inputs received, "civil aviation has emerged as a soft target for terrorist attacks", it said in the advisory.

The probability of "unlawful interference" is more from the city side of the airport premises and terminals, it added.

"...all approaching vehicles will be subject to an intensive random security check at least one km away from the airport terminal or as per availability of space for such barriers/Naka/vehicles check points, which shall be sufficiently away from the airports", as per the advisory.

At the check points set up by the state police/airport security group, random screening will begin with immediate effect subject to certain conditions, it said.

The random checks would be done for at least 10 per cent of the vehicles till August 31.

The government on Monday revoked provisions of Article 370 of the Constitution to withdraw the special status given to Jammu and Kashmir, and bifurcated the state into two Union territories -- Jammu and Kashmir, and Ladakh.

(With inputs from PTI)