Indian forces have killed three Pakistani soldiers in firing across the Line of Control in the disputed region of Kashmir, the Pakistani army says.
It has accused Indian forces of opening "unprovoked" fire across the LoC - which divides Kashmir between India and Pakistan - in the Neelum valley.
India denied the allegations, saying Pakistani forces opened fire first.
Kashmir has a history of such clashes, though they have become less frequent in recent months.
Correspondents say the latest incident underlines the fragility of ties between India and Pakistan, who have fought two of their three wars since 1947 over Kashmir. Read BBC Report
Matthew 24:7 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet. 7 For nation shall rise against nation...
Unlike WWI and WWII, WWIII will be regionalized more in Eurasia than Europe and in this theatre, India and Pakistan, two nuclear powers, will play a significant role. Relations between these two nations have been strenuous since Pakistan was formed back in 1947, and it is more than likely that they will fight another major war in the future, which may also see a nuclear attack by one side or both.