Kashmir Resistance, also known as The Resistance Front (TRF), has claimed responsibility for Tuesday's attack on tourists in Indian-administered Kashmir, the deadliest incident of its kind in India since the 2008 shootings in Mumbai.

Terrorist attacks that threaten peace and stability must be dealt with "utmost severity", industry leaders said on Wednesday while expressing grief at the loss of lives in the Pahalgam attack.

Gunmen shot dead at least 26 tourists at a resort in Indian-controlled Kashmir, police said Tuesday, in what appeared to be a major shift in the regional conflict in which tourists have largely been spared.