Six tourists from Kerala and four local civilians were injured in a grenade attack at Tangmarg near Gulmarg on Tuesday afternoon. Police sources said that a group of visitors travelling in a Tata Sumo (JK02-V-7195) were on way to Srinagar from Gulmarg. The visitors reached Tangmarg at 3.15 pm and halted there for shopping, sources added. "As they alighted from their vehicle, a grenade was tossed towards them from an unknown direction", said a source, quoting eyewitnesses.Source said that the splinters hit six tourists, causing grievous injuries to two of them. The grenade blast caused injuries to four local residents as well, of whom the condition of one is stated to be critical. Around a dozen tourists have been killed and over 90 injured in 2006 alone in grenade attacks in the city.