Archi Club Lighting-Truss Collapse
A structured incident report examining the collapse of a metal lighting structure into an occupied VIP and table area during an electronic-music performance in Buenos Aires.
Incident overview
What occurred
At approximately 05:00 on Sunday, 1 March 2026, a substantial metal truss carrying lighting and reportedly sound equipment collapsed at Archi Club on Avenida Costanera Rafael Obligado in Costanera Norte, Buenos Aires.
The assembly fell behind the DJ booth and into the occupied VIP or table area while British DJ Max Dean was performing. Video showed the structure descending abruptly onto patrons.
Approximately 700 people were evacuated. Buenos Aires City Police, firefighters and ten SAME emergency-medical units attended, while the avenue was closed during rescue, evacuation and structural examination.
Evidence position
Current assessment
Injuries: Later reporting identified 15 injured people. Six were transported by ambulance, two women attended hospital independently, and other casualties were treated without admission.
Medical outcome: Hospital-treated casualties were subsequently reported discharged. No fatality or life-threatening injury was reported in the sources contained in the supplied document.
Cause: No completed technical, administrative or prosecutorial report identifying the failure mechanism or assigning responsibility was located.
Key figures
Reported casualties and response
Chronology
Sequence of events
Operational considerations
Critical evidence areas
Verified circumstances
Structure, injury and response
The failed assembly was situated behind the DJ booth and above or adjacent to a VIP table area. Some sources said it had been installed specifically for the event, but no primary technical record confirming that status was located.
Local hospital reporting identified six ambulance-transported patients with head or craniocerebral trauma and two independently presenting women with multiple trauma. All eight hospital-treated casualties were reported discharged.
The venue is recorded in Buenos Aires municipal open data as ARCHI, operated by Night Dream S.A. at Avenida Rafael Obligado 6551.
Investigation status
Closure and accountability
The club was reported closed after the incident, and the injury case was referred to the Unidad Fiscal de Flagrancia Norte. Later reporting continued to describe the premises as closed while the incident was investigated.
Secondary reports alleged an authorised capacity of 500 while approximately 700 people were present. Neither a primary licence confirming that capacity nor an audited attendance record was located.
No completed engineering report, prosecutor’s report, criminal charge, administrative penalty or civil judgment was identified in the supplied research.
Conflicting information
Details requiring qualification
Casualty, medical, structural and occupancy details developed across successive reports. The comparisons below preserve those differences without presenting unresolved claims as established findings.
Early emergency reporting counted nine casualties; later sources reported 15 injured people.
La Nación and Infobae reproduced a provisional count of nine: four treated at the scene and five transported.
Página/12, DJ Mag, Mixmag and other later reports used a total of 15 injured.
Fifteen is the better-supported later total. The increase appears to include additional people treated at the scene or identified after the provisional emergency count.
Initial SAME reporting said five people were transported. Later hospital reporting identifies six ambulance-transported patients, plus two women who attended independently.
La Nación reported five transported and four treated at the scene.
Infobae, DJ Mag and Mixmag reported six ambulance transports and two independent hospital presentations.
The six-person figure is supported by the named hospital distribution of three patients at Pirovano and three at Rivadavia.
DJ Mag and Mixmag said two people reportedly sustained traumatic brain injuries. Infobae reported that all six ambulance-transported patients were diagnosed with head or craniocerebral trauma.
DJ Mag and Mixmag: two traumatic brain injuries.
Infobae: six ambulance-transported patients with traumatismo encéfalo craneal, none in immediate danger.
The difference may reflect terminology, severity thresholds or translation. No primary hospital bulletin was located.
Approximately 700 people were consistently reported evacuated. Secondary reports alleged that the authorised maximum was 500.
SAME-linked reporting stated that more than 700 people were evacuated.
Mixmag and some secondary reports referred to a 500-person authorised capacity.
The evacuation figure is not necessarily a precise admission count. The alleged 500-person capacity was not confirmed through an accessible primary licence document.
Sources described the failed assembly as a lighting truss, lighting tower, part of the stage, stage roof or a structure carrying lighting and audio equipment.
DJ Mag and Mixmag described a large lighting truss.
Local reports referred to a stage component, lighting support or technical structure.
Photographs confirm a substantial metal truss assembly. Its formal engineered classification and complete equipment load were not published.
The municipal open-data register gives 6551; incident reports also used 6553 or the general 6500 block.
Buenos Aires City Government: Avenida Rafael Obligado 6551.
La Nación used 6553, while Infobae referred to the 6500 block.
All descriptions refer to the same Costanera Norte venue.
Not verified
Outstanding information gaps
The following matters were expressly identified as unverified in the supplied report.
Source material
References
The reference catalogue below reproduces the news, magazine, official, professional and open-source material identified in the supplied incident report. No incident-specific academic paper was located.
Document URLs
Source links
Each link opens the source address embedded in the supplied Word document. The Infobae article appears twice because it functions both as a news reference and as the location of the cited collapse video.
