State police said a driver has died after a violent overnight crash in Mercer County. 

Police said 21-year-old Justin Park of Ellwood City was driving a 2003 BMW when it went off Route 62 in Jefferson Township and struck a tree near Cannon's Gun Room shortly after midnight.

Park and his front passenger, 25-year-old Joshua Klein of New Castle, were both thrown from the car and flown to the hospital. 

Police said Klein has serious injuries. 

The passenger seated in the back of the car, 25-year-old Jonathon King of Jamaica, New York, was trapped and had to be extricated from the car.

He was taken by ambulance to the hospital with serious injuries.  

State police spent nearly five hours on the scene of the accident. 

They are investigating the cause. 

Police said no one was wearing a seat belt in the crash.