India said on Monday it had responded to 'unprovoked' firing from Pakistan along the de facto border for the fourth consecutive night, as it deepens its search for militants in the region following last week's deadly attack on tourists in Kashmir.

Following Tuesday's massacre of 26 mostly Indian tourists, hostilities have intensified between India and Pakistan over the hotly contested Kashmir region.

(Reuters) - 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, quoting Pakistani Defence Minister Khawaja Muhammad Asif.