scoobyladnewcastle

Hi have just been driving home from work and battery light and brake light came on just as i turned into street then went to turn onto drive no power steering got it onto drive and lifted the bonnet and power steering and alternator belt gad came across the pully that bolts to the engine this was also lose, I have put the belt back on and tightened this up started the car and there is a knocking noise
can anyone advise? timing, engine knackered etc.
thanks