Elevated levels of toxic gases have been detected in a machine cabin at SSAB's steel plant in Luleå, according to local reports. The incident, which occurred on April 3, 2026, involved the discovery of nitrogen oxide and sulfur oxide in one of the machine cabins during ongoing work. Samples were taken on Wednesday, with results showing increased levels of the two toxic gases.
The cause of the gas buildup remains unclear at this time. SSAB has stated it will conduct risk assessments and design additional tests to determine the source of the problem. Meanwhile, personnel are reportedly working with protective equipment.
According to the timeline of reports, all work at SSAB's steelworks construction site has been stopped following the incident, with a second report indicating a machine operator was poisoned.