NEW DELHI — A deadly attack on tourists in Indian-controlled Kashmir has again moved India and Pakistan closer to war as the two rivals downgraded diplomatic and trade ties, closed the main border crossing and revoked visas for each other’s nationals.

Pakistan called India's actions “irresponsible" and canceled visas for Indian nationals, suspended all trade with India and closed its airspace to Indian aircraft.

India's army chief will review security arrangements on Friday and visit the site of a deadly attack on tourists in Indian Kashmir earlier this week, with fears of fresh tensions with long-time rival and neighbour Pakistan spooking markets.