Officials in Switzerland say around 40 people have been killed, after a fire broke out in a bar in the ski resort of Crans-Montana. 115 people were injured; many of them are being treated in specialist burns and respiratory units across the country. An investigation into the cause of the fire is underway, but the region's chief prosecutor said there was "no question" of an attack. At a briefing this afternoon the Swiss President - Guy Parmelin - said this was "one of the worst tragedies" his country had experienced.