Twenty-six men were killed and 17 were injured when suspected militants opened fire at tourists in India's Jammu and Kashmir territory, police said.

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.

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 the deadliest attacks in the restive Himalayan region.