The United Nations has urged India and Pakistan to exercise “maximum restraint” after they ramped up a tit-for-tat diplomatic offensive following a deadly attack on tourists in Indian-controlled Kashmir.

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.

SRINAGAR (Reuters) -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.