Vietnamese authorities in four central provinces were evacuating more than 500,000 people from high-risk areas to government buildings, schools and other concrete homes able to withstand strong winds.
"The evacuation is being conducted with urgency," disaster official Nguyen Thi Yen Linh said from central Danang City, where some 76,000 were being moved to safety.
Hundreds of thousands of others were being taken to shelters in the provinces of Quang Ngai, Quang Nam and Thua Thien Hue. Schools were closed and two deputy prime ministers were sent to the region to direct the preparations.
Associated Press writers Oliver Teves and Teresa Cerojano in Manila, and Minh Tran in Hanoi, Vietnam, contributed to this report.
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