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.

Relations between India and Pakistan are cratering following a deadly attack in the disputed Himalayan region of Jammu and Kashmir that left more than two dozen tourists dead.

NEW DELHI (Reuters) - At least 26 people died and 17 others were injured when suspected militants opened fire at a popular tourist spot in the Pahalgam region of India's Jammu and Kashmir territory this week. As security forces hunt for the perpetrators, here is a look at what happened, and how India has reacted.