PRINCETON — Princeton University is evacuating the Ivy League campus after receiving a bomb threat.

University spokesman Dan Day says the threat is against multiple buildings.

Employees were told to leave campus just before 10:30 a.m. Tuesday.

No classes are in session, though Day says there are some summer programs on campus.

Witnesses near the scene are saying the buildings are emptying out in a relatively calm fashion, but the resulting traffic of cars is creating gridlock in the streets around the campus.

Hamilton resident Tera Juerling said her mother, who works at the University, was among the evacuees.

“She said it is total chaos over there,” Juerling said. “No one knows where to go.”

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