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.

The day after a deadly attack, India announced it was closing a border with Pakistan, downgrading its diplomatic ties and suspending the Indus Waters Treaty. Pakistan denies involvement in the attack.

India has cut off part of Pakistan’s water supply and shut down the border after a terrorist attack in Kashmir triggered the worst diplomatic spat between the two countries in decades.