Violating the ceasefire yet again, Pakistani troops fired at a forward border outpost along the international border in the wee hours on Monday drawing retaliation from BSF troops.
An IED explosion also took place along the borderline.
"There was a cross-border firing from Pakistan's Suragpur post on Abdullia border outpost along the international border in RS Pura sub-sector, around 30-km from Jammu, at 0400 hours in this morning," the official told PTI.
BSF jawans guarding the BOP and patrolling party took positions and retaliated, resulting in exchange of small arms fire, he said, adding it continued for nearly one-and-half hour intermittently and resumed again at 06.15 hours and was continuing intermittently since then.
"There was also an explosion tiggered by IED near the border line. There was no lose of life or injury to anyone in the explosion and firing on this side of the border," he said.
It was not immediately known whether the explosion was carried out by any intruding militant or anybody else, he said.
Massive search operation has been launched in the area, the official said, adding further details would be known latter.
Yesterday, Pakistani troops helped violated the seven-year-old ceasefire on the Line of Control (LoC) yet again, firing at Indian positions at Machhil sector in Jammu and Kashmir killing two porters and injuring two jawans.
The firing comes just four days ahead of Home Minister P Chidambaram's visit to Pakistan.