Picture gallery: Roskilde tragedy

An investigation is under way in Denmark into how eight people were crushed to death at the Roskilde music festival concert.

The victims were crushed or trampled as fans surged forward during a performance by Pearl Jam

The band asked the crowd to move back and stopped the performance when that did not happen

As the deaths were announced over the loudspeakers, some concert-goers began crying

By first light, the scene at Roskilde was grim, but organisers said the festival would go on

Festival-goers have been lighting candles and laying flowers in memory to the people killed