A student at Archbishop Carroll High School was flown to the hospital by a medical helicopter this afternoon after being thrown from a car in the school's parking lot.
Radnor Township police said the 17-year-old tried to jump onto a moving vehicle -- an SUV -- and startled the driver. The driver stopped the car quickly and the student fell off and hit his head on the ground.
The student was treated and released from the hospital about three hours later.
The accident happened in the school's parking lot. Archishop Carroll is located in the 200 block of Matsonford Road in Radnor, Delaware County, Pa.
The school sent out a statement saying that the student suffered a head injury and families would be notified about the incident.
"The Office of Catholic Education will conduct a full, internal investigation of this incident," Archdiocese Director of Communications Ken Gavin said in the statement.