(NEWSER) – Four people killed when a Ride the Ducks amphibious vehicle collided with a bus in Seattle yesterday have been identified as international students at North Seattle College. Authorities say they were among 48 staff and students from six countries who were touring the city on a chartered bus before classes started Monday. Another 51 people were injured in the crash, including 15 critically, though some have been upgraded to serious condition, reports

"I turned and looked, and that's when I saw the carnage," a 61-year-old passenger on the Ducks vehicle tells the Seattle Times. "People I was sitting next to weren't there … they had been thrown completely out of the back of the Duck." He says he felt the rear of the vehicle fishtail before the crash. "And just at that moment, I heard the driver go: 'Oh, no!'"

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