Security guard Pietro Zantonini, 55, died on Jan. 8 while working on the construction site in front of the Cortina Olympic Stadium

Olympic rings at the Santagiulia Ice Hockey Arena prior the Men's Bronze Medal match between Slovakia and Finland on day fifteen of the Milano Cortina 2026

The Milano Santagiulia Ice Hockey Arena is seen on Feb. 21, 2026, in Milan, Italy.Credit : RvS.Media/Robert Hradil/Getty

Italian officials have launched a probe into the death of a security guard who died while patrolling a Winter Olympics construction site last month.

According to Italian outlet Open, the prosecutor’s office in the Belluno province has opened an investigation into the death of 55-year-old Pietro Zantonini, who died on Jan. 8 while working on the construction site in front of the Cortina Olympic Stadium.

Open and newspaper L’Unione Sarda reported that Zantonini had started his shift at 7 p.m. local time on Jan. 7 and was asked to patrol the construction site until the morning.

Zantonini was staying in a nearby cabin heated by a small heater during his shift. By 2 a.m. on Jan. 8, he began feeling unwell and called a coworker, telling them that he was having difficulty breathing. Paramedics were sent to the site, but Zantonini had stopped breathing before an ambulance arrived, the outlets reported.

04 February 2026, Italy, Cortina D'ampezzo: Olympia, Olympic Winter Games Milan Cortina 2026

Construction work underway near the Cortina Sliding Center on Feb. 4, 2026.Michael Kappeler/picture alliance via Getty

An autopsy confirmed that Zantonini died from a heart attack that was brought on by the freezing temperatures, though further exams are still set to take place, Open reported.

L’Unione Sarda reported that the temperature reached a low of around 10 degrees Fahrenheit that night.

Investigators are now looking into any potential “aggravating circumstances,” such as unsafe work and environmental conditions, that may have contributed to Zantonini’s death, Open reported.

The Milano Cortina 2026 Organising Committee did not immediately respond to PEOPLE’s request for comment.

Zantonini — who was from the city of Brindisi, located in southern Italy’s Apulia region — was first hired on a fixed-term contract in September 2025. He traveled to Cortina for the job, L’Unione Sarda reported, and was set to return home at the end of January.

Following his death, Zantonini’s wife filed a complaint with Italian law enforcement, and prosecutor Claudio Fabris ordered that an autopsy be conducted.

Zantonini’s family, including his wife and their adult son, previously said that the 55-year-old “had repeatedly expressed concerns and complaints about working conditions, long night shifts, and the lack of adequate protection,” their lawyer, Francesco Dragone, told L’Unione, adding that on the night of his death, Zantonini “was working a night shift, outdoors, in particularly harsh weather conditions.”

The circumstances of Zantonini’s death “bring back to the forefront the issue of safety and working conditions on construction sites and in services related to major events, particularly in view of the 2026 Winter Olympics,” the family added.

Workers carry out construction work at the Arch of Peace on February 3, 2026 in Milan, Italy. For the 2026 Milan-Cortina Winter Olympics, the Olympic flame will be lit and extinguished simultaneously in the two host cities of Milan and Cortina d'Ampezzo. The organizing committee has set up main cauldrons at the Arch of Peace in Milan and at Piazza Angelo Dibona in Cortina d'Ampezzo.

Workers carry out construction work at the Arch of Peace in Milan, Italy, on Feb. 3, 2026. Jiang Qiming/China News Service/VCG via Getty

The family also shared that they hope the autopsy and investigation “shed full light on the incident and ensure that no workplace death is treated as a private or unavoidable event.”

Simico, the government agency responsible for Olympic infrastructure, previously told Open in a statement that it did not oversee the site where Zantonini died.

Italian infrastructure minister Matteo Salvini previously told L’Unione that he was “deeply saddened by the death of the security guard,” and had “requested detailed information on the incident, with particular reference to the contract and his duties.”

Salvini said he wanted to “take this opportunity to reiterate that workplace safety is a priority, to be taken before any other aspect, including the expediting of certain projects,” per the outlet.

The 2026 Winter Olympics kicked off in Milan and Cortina d’Ampezzo on Feb. 6 and are set to conclude on Sunday, Feb. 22.