Four civilians died when artillery shells fell on a home for the elderly inside a demarcated safe area within Sri Lanka's war zone, a doctor said Saturday. Many elderly people were also injured in the shelling on Friday in the northeast Puttumattalan area, said T. Satyamurthy, a doctor working out of the makeshift community centre hospital. He estimated more than 100 wounded civilians were coming to the hospital daily and most had shrapnel wounds. He did not know who had fired the shells.