At least 26 people were killed and 17 others wounded when gunmen opened fire on tourists in Indian-controlled Kashmir, the worst assault in years targeting civilians in a restive region that has seen an anti-India rebellion for more than three decades.

India's Prime Minister Narendra Modi says the gunmen behind a terrorist attack on tourists in the Kashmir region "will not be spared!"

Security has been beefed up across Indian-controlled Kashmir a day after an attack killed at least 26 people, most of them tourists, as Indian forces launched a manhunt for the perpetrators of one of