More deadly violence flared in a Sri Lankan coastal resort where Buddhist hardliners set shops and homes alight for a second night running in defiance of a curfew, police and residents said on Tuesday. Amid mounting international concern over the unrest, residents of a town which has borne the brunt said a security guard was killed in an attack outside a Muslim-owned farm, raising the overall toll to four. "More than a dozen houses and shops have been burnt overnight," a police source told AFP from the mainly Muslim town of Alutgama after another night of mob violence by followers of the extremist Buddhist Force.