1996 V8i Disco starting problem

Hi. New to landy zone despite having my disco for several years. Maybe lucky. Anyhow. This morning started the V8 and as reliable as ever fired first time. However before selecting drive the engine died and now despite turning over will not fire. Hchecked leads and cables and can't see anything obvious and we have a spark. At a bit of a loss. Any suggestions?
Many Thanks

Its a v8 you must be out of petrol

If you have then it must be petrol. First check to see the pump is running and you are getting fuel to the plugs.

Yes. have fuel and there is fuel getting through as the plugs get wet. Not flooded, did all that drying out etc.