Nine people were killed and at least 20 more injured on Sunday when a Korean Canadian tour bus crashed down an icy embankment in Oregon, according to news reports.

The accident occurred at approximately 10:30 a.m. on Sunway on the ice-covered roads of Interstate 84 in eastern Oregon. The tour bus, owned by Mi Joo Travel of Vancouver, British Columbia, apparently lost control on the icy road and careened through a guardrail, and tumbled down a 100-foot embankment, according to The Oregonian newspaper. After flipping at least three times, the bus came to a stop with its roof partially sheared off.

Yoo Byung Woo

One survivor told The Oregonian that the majority of the passengers were teenage foreign exchange students from Korea. The bus had just made the last stop of a nine-day tour and was traveling from Las Vegas back to Vancouver.

Yoo Byung Woo, 25, of South Korea told the Oregonian that he thought the bus driving was going too fast.

Yoo said one of the riders, who was frightened, asked the guide if they could take another route. Yoo said some of the passengers were dozing off. But he was wide awake when the driver suddenly slammed on the brakes on a section infamously known as Dead Man Pass. Yoo said the bus skidded, hit the median, spun, crashed into the guard rail and then rolled down the hill.

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