According to WTAJ News, state police say Jeffrey Cox, 44, from Johnstown was driving a box truck down Route 219 near Mahaffey when he swerved to miss a car.
This caused his vehicle to hit the coal truck driven by Terry Crissman, 58), of DuBois.
Crissman managed to escape before his truck caught fire.
According to the station, both men were airlifted from the scene with moderate injuries.
The accident happened outside the Mahaffey Camp, where 2000 people have been attending family week.