Final Report on Stenungsund Landslide Completed by Investigation Authority

The State Accident Investigation Authority has completed its final report on the major landslide on E6 in Stenungsund. This also brings a potential prosecution closer. This is the last piece of the puzzle we have been waiting for, says prosecutor Daniel Veivo Pettersson.

» Published: June 11 2025

Final Report on Stenungsund Landslide Completed by Investigation Authority
Photo: Björn Larsson Rosvall/TT

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It was at 01.20 on September 23, 2023, when large masses of earth suddenly moved at E6 near Stenungsund.

Several people were injured when the masses destroyed a stretch of several hundred meters of motorway and the surrounding area.

On Tuesday of next week, the accident commission will present its report on why the landslide occurred.

Three suspects

According to a draft of the report, which leaked earlier this year, excavated masses tipped east of E6 are pointed out as the cause.

Parallel to the accident commission's investigation, a criminal investigation is also underway, where three people are suspected of gross negligence, gross bodily harm and unauthorized environmental activities.

We have been waiting for this news, says prosecutor Daniel Veivo Pettersson.

We are far ahead in our investigation, but have been waiting for the report to be able to take the next step.

Decision in the fall

Whether there will be charges or not against the suspects is too early to say, according to the prosecutor. He expects to be able to make a decision after the summer.

It would be good if we could come to a decision in early fall. It will be two years in September and there are certain points to have it clear by then, he says.

Jens Bornemann/TT

Facts: Landslide in Stenungsund

TT

(TT) The landslide started around 01.20 on September 23, 2023, on E6 near Stenungsund. The first alarm came in to SOS Alarm at 01.46. The landslide led to extensive damage to the road and nearby buildings. Several people were injured, but not seriously. On March 27, 2024, prosecutor Daniel Veivo Pettersson announced that three people are suspected of gross negligence, gross bodily harm and unauthorized environmental activities. The investigation is ongoing. On July 3, 2024, King Carl XVI Gustaf inaugurated the repaired road section and on July 5 at 6 am, traffic was reopened. The final cost of the reconstruction was around 550 million kronor, according to Trafikverket. In addition, Stenungsunds municipality has estimated that the landslide has cost the municipality around 270 million kronor.

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By TTEnglish edition by Sweden Herald, adapted for local and international readers

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