. >> we can speak now to simon bradley, who's joining us on the line from switzerland. there is great surprise, puzzlement, as to how this happened at all, isn't there? >> well, the cause of the accident is still not yet known, and an investigation is underway. what we know, we were told early this morning at a press conference about 5:00 is the coach, the accident occurred at around 9:00 last night. the coach had left the region where they had been on a skiing holiday, and they had gone on to the motorway just around sierre, which is a built-uptown, heading towards the modern motorway. the accident occurred in a tunnel, which was about 10 years old, a modern tunnel, 1,000 kilometers long, and as i say, we don't know many more details, apart from the fact that the bus veered right, hit a curb, and rammed head on into an emergency area, concrete wall. and if you see the shocking picture of the wreckage, there is a lot of shock, particularly among the rescuers. >> pretty awful pictures, as you say. and those others on the bus, many of them injured, of course, they've been