The grave of Mahsa Amini, the young Iranian Kurdish woman whose death sparked a protest movement that rattled Iran's clerical leadership, has been vandalised, according to activists and the family lawyer.Amini, 22, died in September after being arrested by Tehran's morality police for purportedly flouting the strict dress rules for women in the Islamic republic.The protests that began after her death challenged the Islamic system that has ruled Iran since the 1979 revolution. They have weakened in amplitude over the last months but actions still continue.