Three-four persons were found crossing the line of control in Poonch Sector from Pakistan side at about 10.45 am, Defence Spokesman, Northern Command, Col S D Goswami said.
"When these persons were well within the Indian territory, our troops deployed in the area opened fire on them," Goswami said, adding that simultaneously, Pakistani post located immediately across this area resorted to heavy firing.
During the resultant exchange of fire, the infiltrators ran back towards Pakistan side, he said.