The Indian military says Pakistani soldiers fired at Indian posts all along the highly militarized frontier in disputed Kashmir as tensions flare over attack on tourists.

A day after the U.N. appealed for restraint following Tuesday's deadly attack in Indian-administered Kashmir, India reported an exchange of fire across the de facto border in the disputed region.

Pakistan believes an international investigation is needed into the killing of 26 men at a tourist spot in Indian Kashmir this week and is willing to work with international investigators, the New York Times reported on Friday,