India's military says two of its soldiers were shot dead by Pakistani troops near the Line of Control that divides the disputed region of Kashmir.
Indian officials said a gun battle erupted on January 8 after Pakistani troops crossed the Line of Control into Indian-administered territory.
An Indian army spokesman called the clash a "grave provocation."
Pakistan's army denied it launched an unprovoked attack.
The deaths on January 8 come two days after Pakistan said that one of its soldiers had been killed when Indian troops attacked a Pakistani checkpoint near the Line of Control.
India and Pakistan have fought three wars over Kashmir since their 1947 independence from British colonial rule -- the latest in 1999.
Skirmishes continue despite a 2003 ceasefire, but deaths are now rare.
Based on reporting by Reuters, AP, AFP, and the BBC