Foreign factories come under siege in Vietnam.<br /> <br />Thousands set fire to factories and rampaged industrial zones in protest against Chinese oil drilling in a part of the South China Sea claimed by Vietnam.<br /> <br />The brunt appears to have been borne by Taiwanese companies rioters mistook the firms for Chinese-owned ones.<br /> <br />Video shown earlier this week on Vietnamese TV shows tensions on the high seas as Chinese and Vietnamese ships exchange water-cannon fire near a Chinese oil rig.<br /> <br />China claims almost the entire South China Sea, an area rich in energy deposits<br /> <br />Washington has described Beijing's actions in the region as "provocative".<br /> <br />At least one Taiwanese businessman has had enough. He fled Vietnam in disguise.<br /> <br />(SOUNDBITE) (Mandarin) TAIWANESE BUSINESSMAN, CHONG MING-CHENG, SAYING:<br /> <br />"All I can say is that I never felt so scared in my life. Last night I didn't sleep all night. I spent all night thinking about how to escape to the airport. I still have
