Indian security forces killed two more gunmen on Sunday at an air base attacked by militants a day earlier, bringing the number of attackers killed to six.
“The decision to blow up the one of the administrative units was taken to neutralise the sixth militant. It was also needed to makes sure we destroy live grenades,” the source told Reuters on condition of anonymity.
The source said it was not yet clear whether the air base was now fully secured but efforts were under way to complete the operation before nightfall.
At least six Indian military personnel have died since gunmen launched an audacious pre-dawn attack on Saturday on the Indian Air Force Base at Pathankot, just 25 km (16 miles) from India-Pakistan border.
One of the Indian security members killed in the attack was Subedar Fateh Singh, who won gold and silver medals in the first Commonwealth Shooting Championships held in 1995, the National Rifle Association of India said.
There was no immediate claim of responsibility from any militant group for the attack.
Pakistan condemned the attack and said it wanted to continue to build on the goodwill created by an impromptu meeting between Indian Prime Minister Narendra Modi and Prime Minister Nawaz Sharif during an unscheduled visit by Modi last week in an effort to revive talks between the two neighbouring countries.
In New Delhi, two trains were delayed early on Sunday after officials received information about a possible bomb threat on a train running between the capital and Lucknow to the southeast, railways spokesman Neeraj Sharma said.
Trains were deemed safe and were running on schedule by mid-morning, Sharma said.
