A deadly attack on tourists in the disputed Kashmir region last week has spiked tensions between India and Pakistan

NEW DELHI — A deadly attack on tourists in Indian-controlled Kashmir has again moved India and Pakistan closer to war as the two rivals downgraded diplomatic and trade ties, closed the main border crossing and revoked visas for each other’s nationals.

Meanwhile, fire was exchanged along the Line of Control (LoC), the 740km (460-mile) de facto border separating the Indian and Pakistani-controlled areas of Kashmir, for a fifth straight night. Pakistan said it had downed a drone, with fears of an escalation between the nuclear powers bubbling.