India and Pakistan have exchanged gunfire for a fourth night in a row in the wake of a deadly attack on tourists in Indian-administered Kashmir last week.

India said its troops responded to firing from Pakistan military positions in the Jammu and Kashmir region for a second day on Saturday, as tensions remained escalated between the neighbors after a deadly attack on tourists this week.

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

The U.S. State Department said on Sunday Washington was in touch with both India and Pakistan while urging them to work towards what it called a "responsible solution" as tensions have risen between the two Asian nations following a recent Islamist militant attack in Kashmir.

As world powers face multiple crises, the one set off by a terror attack in Kashmir is getting scant attention or help in de-escalating between nuclear-armed neighbors.