An attack on tourists in India's Himalayan territory of Kashmir this week sparked a new crisis between nuclear armed South Asian neighbours India and Pakistan, with New Delhi blaming militants with "cross-border linkages" for the killings.

Pakistani minister Hanif Abbasi threatened India with ’nuclear retaliation’ amid a diplomatic row between the two nations, saying Pakistan’s nuclear warheads have been kept ‘only for India’

Relations between India and Pakistan are cratering following a deadly militant attack in Indian-administered Kashmir that has sparked tit-for-tat reprisals and raised fears of another military escalation between the nuclear-armed rivals.