TRIESTE, Italy — Scaffolding and truss crumpled at about 2 pm prior to a Dec. 12  rock concert featuring Jovanotti at the 6,943-seat PalaTrieste. The collapse killed one stage worker and injured eight others, according to press reports. About 20 workers had nearly completed construction of the structure for Jovanotti’s Ora Tour at the time of the accident. The worker who died at the scene, Francesco Pinna, 20, was a college student. Authorities and investigators restricted access to the venue and the concert was canceled.

The artist and his manager, Maurizio Salvadori, announced to the AGI press agency that all future Ora Tour concerts would be postponed. Salvadori added that the cause of the collapse remained a mystery, noting that the structure, certified by an engineer, had been used at numerous previous tour stops without a problem.

Video of the scene after the accident can be seen on Youtube: http://www.youtube.com/watch?v=plD_FS2ByLk