SEATTLE (AP) — A Seattle college says the four people killed in a crash involving a charter bus and an amphibious tour vehicle were international students on their way to new student orientation events.

The crash involving a "duck boat" and the charter bus carrying the students happened Thursday on the Aurora Bridge, which carries one of the city's main north-south highways over a lake.

At least two other people were critically hurt.

In a statement Thursday evening, North Seattle College said "four of our students were tragically killed" in the crash, and that because they were international students, government official were working to contact their family members.

North Seattle College is a two-year institution with about 18,000 students.

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