For the third time in just two months, a Korean exchange student has been attacked in Vancouver. This comes after a local Korean organization received a letter filled with hate, threats of murder and kidnapping.

The 21-year-old woman was calling her parents in Korea from a payphone near the Pacific National Exhibition site, just after 3 a.m. Friday, when the attack happened. She was grabbed from behind, forced into a car and raped.

Vancouver Police Cst. Sarah Bloor said the victim struggled with the suspect, bit him on the right ear, then she was able to flee and get to a safe place on foot.

In May, a 22-year-old language student suffered brain damage after she was beaten while jogging in Stanley Park. Her alleged attacker is awaiting trial.

Last week another Korean student was dragged into some bushes in a Surrey park and sexually assaulted.

Compounding fears in the community, The Korean Society of B.C. recently received a hate letter. In it, the author threatens to kill a Korean each week and use Korean women as sex slaves.

The society is now warning exchange students to walk in groups and avoid late night activities.

The recent violence has made front-page headlines in Korea. Esther Kwon of The Korean Society of B.C. says people may be wary of visiting Vancouver. There are more than 10,000 Korean exchange students studying in Vancouver and the violence has some of them reconsidering their plans.

Police suspect the latest assault was a crime of opportunity, but in any event, officers are warning exchange students to be extremely careful.

Police describe the suspect in Friday's attack as a white male, six-feet three-inches tall, with a large nose and stubble on his face. He was wearing a green T-shirt and driving a red, four-door sedan.