Workplace Safety Investigation Launched at SSAB Luleå After 20 Subcontractors Fall Ill Near New Steel Mill Site

Police launch a probe at the SSAB steel mill in Luleå after 20 workers fall ill from toxic gas. Learn why the site is currently too dangerous for forensics.

By: AXL Media

Published: Apr 8, 2026, 7:00 AM EDT

Source: Information for this report was sourced from SVT Norrbotten and TT

Suspension of Construction Amid Health Crisis

Construction on SSAB’s highly publicized new steel mill in Luleå has come to a complete standstill following a series of unexplained illnesses among the workforce. Since the Easter weekend, all activity on the site has been halted to prevent further exposure to what is believed to be a localized atmospheric hazard. The shutdown affects a critical phase of the "Green Steel" transition project, highlighting the tension between rapid industrial expansion and the fundamental requirements of worker safety in high-risk environments.

The Scope of the Illness

According to reports from SVT Norrbotten, the incident has primarily affected subcontractors hired for the construction phase rather than permanent SSAB staff. Out of a total of 20 workers who reported symptoms, seven experienced reactions severe enough to necessitate formal medical attention. While the specific nature of the symptoms has not been fully disclosed to the public, the volume of affected individuals within a short timeframe prompted an immediate response from both the company and provincial health authorities.

Detection of Toxic Gases

Preliminary air quality tests conducted at the site have yielded troubling results. Investigators confirmed that elevated levels of toxic gas were detected within the heavy machinery used on the construction site. Despite these findings, a formal technical examination of the suspected "crime scene" has yet to take place. Forensic teams and work environment specialists have been blocked from entering the specific area because the current levels of contamination are considered life-threatening to anyone without specialized hazardous material (HAZMAT) protection and advanced breathing apparatus.