Army on Sunday said an infiltration bid was foiled by the troops along the Line of Control (LoC) in north Kashmir's Kupwara district.
A spokesman said that suspicious movement of unidentified persons was detected by a patrolling party of the army last night at 1 am in Machhil sector.
"Militants trying to infiltrate (were) intercepted by own troops; contact (was) established. 1 militant (was) killed. 1 AK & 2 bags recovered," said the spokesman, in a statement.
The operation is in progress, he said.
A BSF trooper, identified as Sudip Sarkar, was also killed in the ongoing gunfight, said an official.