Indian Prime Minister Narendra Modi vowed on Thursday to pursue, track and punish terrorists and their backers in a strong reaction to a deadly militant attack on tourists in Kashmir, where police have identified two of the gunmen as Pakistani.

The Pakistani government announced a series of sweeping retaliatory measures a day after India took aim at its neighbor and archnemesis.

After Prime Minister Narendra Modi's remark, Foreign Minister S. Jaishankar and Home Minister Amit Shah met with President Droupadi Murmu, and two red files were placed on the table—files believed to outline India’s next steps.