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.

For the first time in years, Kashmir Valley observed a complete shutdown, with markets, schools, and public offices closed across Srinagar and other districts, in a rare show of public outrage following the brutal Pahalgam terror attack on April 22.

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