It is commonly held that a major point of friction is the apparent tendency of overseas Chinese to segregate themselves into a subculture. For example, the anti-Chinese Kuala Lumpur Racial Riots of 13 May 1969 and Jakarta Riots of May 1998 were believed to have been motivated by these racially biased perceptions. This analysis has been questioned by some historians, most notably Dr. Kua Kia Soong, the principal of New Era College, who has put forward the controversial argument that the 13 May Incident was a pre-meditated attempt by sections of the ruling Malay elite to incite racial hostility in preparation for a coup. In 2006, rioters damaged shops owned by Chinese-Tongans in Nukualofa. Chinese migrants were evacuated from the riot-torn Solomon Islands.