Floral tributes and candles laid by the families at the scene in the road tunnel where the 22 Belgian school children, four teachers and two drivers died in a coach crash, on March 15, 2012 in Sierre, Valais, Switzerland. The accident occurred on March 14, when a coach carrying 11-12 year old shcoolchildren returning from a skiing holiday crashed into a tunnel, killing 28 of the 52 passengers.