According to a senior BSF official, a group of militants triggered a blast near the border fencing in Alfa Machel border outpost in Akhnoor, 35 km from here
BSF troops of 122 battalion fired at the infiltrating militants and the subsequent gunbattle between the two sides continued for over an hour. The militants then fled back.
As the fence has been cut, a major search operation has been launched in the area to find out whether any militant has managed to sneak in, official said.
This is the fourth infiltration attempt along the International Border and Line of Control (LoC) in a week.