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

In a further escalation, the two sides have repeatedly exchanged gun and artillery fire across the Line of Control that demarcates India-held Jammu and Kashmir from Pakistani-controlled Azad Kashmir,

The April 22 attack in India's Jammu and Kashmir territory was the deadliest on civilians in nearly two decades in the country.But the area has long been a source of tension between India and Pakistan.