Car not accelerating

My boyfriend went to pick up his sister from school this morning. When he got there his car started making a loud sound and flashed the “EPS” light. For a second, the car thought that the key was not in the car, but then went back to normal. The car would not accelerate, he pressed the gas and it would no do anything, and continued making that loud noise. He opened up the hood of the car and the car was hot and the engine was shaking. He managed to drive to a parking lot near his house. It only accelerated about ten mph.