(KUNA) -- At least two civilians were killed and 45 people including four soldiers injured in a blast in Pulwama district of Indian-administered Jammu and Kashmir Saturday.Separatist guerrillas threw a grenade at a passing vehicle of Indian Army at main market at Shopian in Pulwama district, news agency Indo-Asian News Service reported. "One civilian identified as Muhammad Yusuf Lone died on the spot while 45 people including four troopers were injured," Pulwama police told the news agency. In the evening, a severely injured person, -- Muhammad Akram Shah, succumbed to injuries at a hospital at Shopian, the news agency said. Indian security forces immediately surrounded the market place and launched search operations. No group had yet claimed responsibility for the attack.