A 42-year-old East Berlin-area man will be charged with open lewdness for mooning children on a school bus three times this month, state police said.

The incidents happened at a school bus stop in the first block of Bentz Mill Road in Washington Township, according to state police.

Three times in the past week the man went to the bus stop to put several children on the bus, police said. As the bus pulled away, he turned away from it, dropped his pants, exposed his buttocks and mooned the kids, according to police.

It first happened April 5, then again on Monday and Tuesday, police said.

Police described it as an isolated incident. Dover Area School District assisted troopers in the investigation, police said.