Horror moment Sindbad tourist submarine disaster unfolds as vessel plunges 'with hatches STILL OPEN' leaving six dead / Six dead after tourist submarine sinks in Red Sea / Six dead including two children after tourist submarine sinks in Egypt's Red Sea / Doomed Red Sea submarine 'CRASHED and scraped sea floor' on trips before deadly sinking killed six, Brit tourist warned / Egypt tourist submarine sinks with 6 dead - including child - and dozens injured in Red Sea disaster / Egypt: 6 dead after tourist submarine sinks in Red Sea / At least six dead after tourist submarine sinks in Egypt's Red Sea