Drum has stopped moving

I had strange noise coming from my Hotpoint Aquarius WMM39 during fast spin over a number of washes - like the noise a zipper or coin inside the drum would make only more "scraping". The drum has now died and will not turn at all - although the wash function appears to be ok otherwise i.e. lights are all coming on, water still going into and out of drum and detergent drawer.

Any ideas i.e. motor, belt, bearings?