TEHRAN, Iran (CNN) — A group attacked the Tehran home and office of Nobel peace laureate Shirin Ebadi, trampling a sign in the front yard, spray-painting slogans on her building and accusing her of supporting Israel, she told CNN.Police dispersed the protesters, who identified themselves as medical students, about a half-hour after they arrived Thursday, she said.The protesters chanted, “Ebadi supports Israel’s murders,” according to a statement from Ebadi’s Center for the Defenders of Human Rights.