LAMAR TOWNSHIP -- Three teenagers accused of throwing rocks at tractor-trailers have been charged with aggravated assault in Clinton County.
Troopers say the teens damaged two trucks traveling on Interstate 80.
State police blame a 16 year old and two 15 year olds for damaging two rigs driving along Interstate 80 near Lamar last week.
Troopers say it happened Wednesday night near the bridge where Interstate 80 crosses over Rag Valley Road.
The teens were underneath the bridge throwing what state police describe as "large rocks" up onto the interstate.
One rock broke through the windshield of a truck.
Another truck sustained damage to the cab. Both drivers are from Ohio and were not hurt.
We spoke with other truck drivers at a rest top near Lock Haven who say this isn't the first time they've heard about someone throwing rocks at big rigs.
"It's very dangerous. I mean you know, kids are going to be kids, but you would hope they wouldn't do something like that," said George West of North Carolina.
"The impact of the falling rock could come into the windshield and kill someone," said Julie Green Nesbit of Mississippi.
All three of the teenagers have been charged with aggravated assault for endangering those truck drivers. They are in the Centre County juvenile detention center.