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.

India and Pakistan have intensified their hostilities over the hotly contested Kashmir region following a massacre of 26 mostly Indian tourists, which New Delhi linked to Pakistan. Pakistan denies it was behind Tuesday's attack by gunmen on a group of tourists in Kashmir.

The Pakistani government said that if India followed through on a threat to block rivers it would take it as “an act of war.”