Nearly 24 hours on, mystery still surrounds a 'chemical' haze that descended on a UK tourist hotspot, leaving around 150 holidaymakers hospitalised. Beachgoers were left with burning eyes, breathing difficulties and vomiting as the mist engulfed a stretch of coastline in East Sussex, near Beachy Head, yesterday. One witness described how the gas cloud came "out of nowhere", leaving a smell of chlorine in the air and turning a "nice, clear, sunny day" into chaos. Dozens of people were 'decontaminated' in hospital, but, a day later, it remains unclear what caused the haze and what toxic substances were involved. Shortly before 1pm, RNLI Newhaven Lifeboat Station said there was "still no explanation for the substance that affected so many people yesterday". It added: "Investigations are still continuing by the police and fire service." The incident has sparked a number of theories - with some people claiming the haze might have come from a wartime canister, washed from the seabed. Another