A 43-year-old Swiss man has been arrested after a shooting at a techno rave in Aarau left an Italian woman dead and five other people injured, triggering an intensive police operation that continued for almost 24 hours across northern Switzerland.
Authorities said the suspect was apprehended shortly before 01:00 local time on Monday, following a manhunt launched after gunfire erupted at the Schachen race track during a large electronic music event attended by thousands of people.
The victim was identified as 22-year-old Italian national Maria Spinelli, who died at the scene after the shooting. Four men and another woman, all aged between 24 and 27, were transported to hospital with injuries ranging from minor to severe.
The incident unfolded at about 02:30 local time on Sunday, when Aarau cantonal police received reports of shots fired at the racecourse. Emergency services and officers responded to the venue as attendees faced a sudden and frightening disruption.
Organisers had expected approximately 3,500 people to attend the rave, which was being held at the Schachen track in Aarau, a town roughly 46 kilometres west of Zurich. The event’s large crowd heightened concerns as police searched for the gunman.
An eyewitness quoted by Swiss news outlet Blick said he suddenly heard gunshots shortly after the music stopped. He initially believed the sounds were fireworks, before realising something far more serious was happening inside the venue.
The witness said a man and a woman instructed him to hide. The woman was subsequently shot, according to his account, illustrating fear that spread among people gathered for what was expected to be a night of music and dancing.
Police launched a major search operation after the attack, but initially had little information about who was responsible. By Sunday afternoon, Aarau authorities said they had no concrete leads and could not determine whether one shooter or several were involved.
The eventual arrest represented a significant development in the investigation. Police confirmed the suspect is a 43-year-old Swiss man, although authorities have not publicly released his name or provided detailed information about his circumstances or possible connections to the event.
Investigators are now working to establish the precise sequence of events, the circumstances surrounding the shooting and the possible motive. Police said their current assessment is that the perpetrator acted alone, while stressing that the investigation remains ongoing.
The arrest came shortly before 01:00 local time on Monday, approximately 22 hours after the first reports of gunfire. The operation involved an extensive search and cooperation between Swiss authorities as investigators attempted to locate the suspect.
Local media also reported that police in Germany were supporting Swiss forces during the search. Aarau lies less than 40 kilometres from the German border, making cross-border coordination relevant as authorities sought to prevent the suspect from escaping.
Aarau, the capital of the Swiss canton of Aargau, has a population of about 23,000. The normally quieter community was thrust into the national spotlight after violence broke out at a major gathering in its Schachen district.
The shooting has also prompted attention in Italy because Spinelli was an Italian citizen. Italian Prime Minister Giorgia Meloni said she was confident Swiss authorities would shed full light on the circumstances and identify anyone responsible for the deadly attack.
Italy’s foreign ministry separately announced that officials were being sent to Zurich to closely follow the investigation. The move reflects the diplomatic concern surrounding the death of an Italian national during an event in neighbouring Switzerland.
Authorities have not indicated whether the victim was specifically targeted or whether the shooting resulted from a dispute at the rave. Establishing the relationship between the suspect, Spinelli and other injured people will be an important part of the investigation.
The five injured attendees were taken to hospital following the shooting. Police said their injuries varied from minor to severe, but officials have not provided details about their identities, medical conditions or the circumstances in which each person was wounded.
Questions are also likely to focus on how the suspect obtained the firearm and whether any warning signs were identified before the shooting. However, investigators have yet to release information that would clarify the weapon, its ownership or its use.
Switzerland has one of Europe’s highest levels of civilian gun ownership, partly reflecting its military traditions and widespread availability of firearms. Despite that prevalence, serious gun violence remains relatively uncommon compared with many other countries.
The country has introduced tighter firearms controls in recent years, following political and public debate over weapons access and safety. The Aarau shooting could renew discussion about security at large public events and risks associated with firearms.
Switzerland’s most significant previous mass shooting occurred in 2001 in Zug, near Lucerne. A gunman killed 14 members of the cantonal parliament and local government before taking his own life, marking one of the country’s darkest episodes of political violence.
The Aarau incident was different in setting and circumstances, taking place at a crowded music event rather than a government building. Nevertheless, the fatal shooting has revived memories of rare but deeply traumatic episodes of gun violence in Switzerland.
For those attending the rave, the investigation will not erase the immediate shock of hearing gunfire in a place intended for entertainment. Organisers, witnesses and injured attendees now face questions about what happened and how the attack unfolded.
Police have urged patience while detectives establish the facts surrounding the case. The suspect’s arrest is an important breakthrough, but authorities still need to determine the motive, reconstruct the shooting and establish whether anyone else played a role.
As the investigation continues, officials in Switzerland and Italy are expected to maintain contact over the death of Spinelli. The focus now shifts from locating a suspect to understanding the events that turned a crowded rave into a deadly crime scene.
Further details are expected as investigators interview witnesses, examine evidence and reconstruct the moments before and after the shots were fired. Authorities have not announced when additional findings will be released, leaving key questions about the attack unresolved overnight.