More than 130 African students trying to flee to Beijing were held incommunicado Tuesday in a Nanking hotel to keep them from angry Chinese students after three days of racial clashes, an official said.

About 5,000 Chinese youths chanting "Kill the black ghosts!" on Monday surrounded the central Chinese city's train station as the students tried to depart for the capital by rail, American witnesses said.But police would not let the Africans embark and had to carry them from the station, one American student said.

The disturbances, which began when African students brought Chinese women to a weekend school dance, were the latest in a series of violent outbreaks between African students and Chinese during the past several years.

Chinese authorities say they are isolated cases and deny charges by the Africans that they are borne of racism in Chinese society.