A guard at a construction site near a 2026 Winter Olympic venue in the mountain resort of Cortina d'Ampezzo died during a frigid overnight shift, authorities confirmed on Saturday.

Italy’s Infrastructure Minister Matteo Salvini called for a full investigation into the circumstances of the 55-year-old worker’s death.

Italian media reported that the death occurred on Thursday while the worker was on duty at a construction site near Cortina’s ice arena. Temperatures that night plunged to minus 10.4 degrees Fahrenheit.

The Milan Cortina Winter Olympics are scheduled for Feb. 6-22.

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The construction site was not one overseen by Simico, the governmental company responsible for Olympic infrastructure, the company said in a statement expressing its condolences.

Cortina city officials said they were “deeply saddened and troubled by the death.’’

Cortina will host curling, sliding and women’s Alpine skiing.