Pakistan says Indian troops have killed two of its soldiers on the Pakistani side of disputed Kashmir.
The military said on September 29 that Pakistani soldiers "befittingly responded to Indian unprovoked firing" along the de facto border overnight.
It said the exchange of fire near the villages of Bhimber, Kel, and Lipa lasted about six hours.
Prime Minister Nawaz Sharif condemned what he called the "unprovoked and naked aggression of Indian forces," adding that the military was capable of thwarting "any evil design to undermine the sovereignty of Pakistan."
Meanwhile, India's military said it had carried out "surgical strikes" along the border to thwart attacks being planned against cities.
"Significant casualties have been caused to these terrorists and those who are trying to support them," Lieutenant General Ranbir Singh said.
But Pakistan's military said in a statement that "the notion of [a] surgical strike linked to alleged terrorists' bases is an illusion being deliberately generated by India to create false effects."
Pakistan and India often trade fire in Kashmir, which has been divided between India and Pakistan since the end of British rule in 1947.
Both claim the disputed Himalayan territory in its entirety and have fought two wars over it.
Based on reporting by AP, AFP, and Reuters