HARRISBURG, Pa. (AP) — Two teenagers were arrested on charges they bombed their high school with a bucket of eggs from a low-flying airplane.

During the incident last June, panicked officials evacuated about two dozen people from the top floors of a hotel when the two-seat plane circled low over downtown Gettysburg, then disappeared.

"You hate to think what might have happened — even unintentionally," prosecutor Brian Sinnett said. He called the prank "one of the most bizarre cases that I've been involved in."

The two Gettysburg High students were arrested Friday on charges including risking a catastrophe and reckless endangerment.