Pakistani firing killed up to four Indian paramilitary soldiers on border patrol, Indian officials said, according to AP.
Pakistan denied initiating the attack and blamed Indian soldiers for provoking the confrontation.
India and Pakistan agreed a while ago to stop trading fire along the tensed frontier and uphold a cease-fire accord dating back 15 years.
While Indian soldiers patrolled a border area in the Jammu region, one of the soldiers was shot by a Pakistani sniper, Indian border guards said as reported by AP.
While other soldiers tried to rescue their fallen comrade, Pakistani soldiers fired volley of gunfire at them, triggering exchange of gunfire, two border officials said.
The two, who spoke on condition of anonymity in keeping with border guards policy, said three soldiers were killed on the spot while the other died later while being evacuated.
