Indian and Pakistan soldiers exchanged gunfire in disputed Kashmir for a fourth night in a row, New Delhi’s army said Monday, the latest violence as relations between the rival nuclear-armed powers fray.

India said on Monday it had responded to 'unprovoked' firing from Pakistan along the de facto border for the fourth consecutive night, as it deepens its search for militants in the region following last week's deadly attack on tourists in Kashmir.

India and Pakistan have intensified their hostilities over the hotly contested Kashmir region following a massacre of 26 mostly Indian tourists, which New Delhi linked to Pakistan