Fresh firing today started at the Air Force base here with two more militants suspected to be holed up.
"A fresh contact has been established and there was brief firing," a senior Army official said.
Additional reinforcements have been sent to the area of operation.
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Five companies comprising nearly 500 personnel have been deployed by the army in the operation. "There is a possibility of two more terrorists being holed up at the Air Force base station," Kunwar Vijay Partap Singh, DIG Border Range, Punjab Police said
He said the search and combing operation was underway and that further details would be shared later on.
A group of terrorists in army fatigues had yesterday attempted to storm the base, which is barely 35 kms from the International Border with Pakistan, but could not penetrate deep.
Earlier this morning, a grenade blast had ripped through the base, claiming the life of an NSG commando and leaving four others injured.