Blaze that swept through crowded New Year’s Eve bar in Crans-Montana also injured 115 people

• Le Constellation bar fire in Switzerland: what we know so far

Swiss investigators are racing to identify the victims of a fire that tore through a crowded bar, killing about 40 people and injuring 115 who were celebrating at a New Year’s Eve party in the Alpine ski resort of Crans-Montana.

President Guy Parmelin has said the country will hold five days of mourning, describing the blaze as one of the most traumatic events in Switzerland’s history. “It was a drama of an unknown scale,” he said, paying tribute to the many “young lives that were lost and interrupted”.

New year party at Le Constellation bar in Crans-Montana turned into tragedy as flames shot across the ceiling

The new year had passed its first hour and the party in Le Constellation was in full swing with revellers dancing to thumping hip-hop. Dawn was far off and the teenagers and twenty-somethings were in no hurry to leave the bar. It was, after all, New Year’s Day.

Outside, darkness draped Crans-Montana, a ski resort in the Swiss Alps with a reputation for posh luxury. Le Constellation, however, had few pretensions: a cavernous venue with TV screens on the top floor to watch sport, and a basement with low lighting, loud music and a dancefloor.