The United States is stepping up pressure on India and Pakistan to avoid conflict in Kashmir after a tourist massacre in an Indian-administered area of the divided territory last week.

Pakistan has test-fired a ballistic missile as tensions with India have surged over last month's deadly attack on tourists in the disputed Kashmir region.

Pakistan-administered Kashmir called on residents near the de facto border with India to stockpile food on May 2 as tensions flare between the arch-rivals following a deadly attack last month. India blames Pakistan for backing a shooting on civilians at the tourist site of Pahalgam in Indian-administered Kashmir on April 22 that killed 26 men.