Spraying pesticides on his parched vegetables one street away from the Indus River, Pakistani farmer Homla Thakhur is worried about his future. The sun is at its peak, the river is running very low, and India has vowed to cut supplies upstream after a deadly militant attack in Kashmir.

Troops from Pakistan and India exchanged fire in disputed Kashmir for a third night in a row, officials said, as relations between the nuclear-armed rivals plunged to their lowest level in years.

Relations between India and Pakistan are cratering following a deadly militant attack in Indian-administered Kashmir that has sparked tit-for-tat reprisals and raised fears of another military escalation between the nuclear-armed rivals.