Indian authorities have detained at least 1,500 people in India-administered Kashmir and razed the homes of suspected Kashmiri militants, as fears mount over a larger conflict between India and Pakistan following the massacre last week of 26 people in the resort town of Pahalgam. India has accused the Pakistani government of backing the perpetrators of the massacre, but Islamabad has rejected any involvement. Soldiers from India and Pakistan have continued to exchange gunfire along the barrier separating Kashmir between the two nuclear-armed powers.