India announced a raft of measures to downgrade its ties with Pakistan on Wednesday, a day after suspected militants killed 26 men at a tourist destination in Kashmir in the worst attack on civilians in the country in nearly two decades.

Foremost among these actions is the suspension of the Indus Waters Treaty of 1960, effective immediately, pending what Pakistan's verifiable cessation of support for terrorist activities against India. The treaty guides cooperation on number of cross-border rivers.

Officials said 24 of the people killed were Indian tourists, one was from Nepal and one was a local tourist guide. At least 17 others were injured.