The report says Mackelvie was trying to sleep when a car alarm woke him. He then saw an SUV crash through part of the hotel, reportedly below his room.
He said he heard shots, breaking glass and loud noises near one of the rooms before contacting emergency services. Police were called after a report of gunfire, while officers later moved through the hotel, checked on guests and gathered statements.
The account remains subject to investigation, and the details described by the supporter have not been independently confirmed.
Local police reportedly said there was no ongoing threat to the public and asked people to avoid speculation while the investigation continued. No confirmed motive or wider explanation had been provided in the update.
That message will matter to travelling supporters. Major international matches bring fans together from across the world, but their experience depends on confidence in accommodation, transport and local security. A frightening incident near a team’s match venue can quickly become part of the tournament conversation, even when it is unrelated to football.
For Scotland, the immediate challenge is helping supporters feel safe while keeping the squad focused on the match. Players and staff are insulated from much of the off-field noise, but the atmosphere around a World Cup fixture can be shaped by events far beyond the stadium.
The next storyline will be whether Scotland can restore attention to the pitch against Morocco on Friday, while authorities work to establish what happened at the hotel and provide clearer answers to those affected.