One killed in Lewiston U‑Haul explosion; authorities say propane blast appears accidental
A Meridian man, 61‑year‑old Douglas R. Petersen, was killed Saturday when a U‑Haul truck exploded about 7:15 a.m. in a Lewiston, Idaho, shopping‑center parking lot; authorities say the blast appears accidental and involved propane inside the cargo area.
- Fatality: Douglas R. Petersen, 61, of Meridian, Idaho — identity confirmed by the Nez Perce County Coroner’s Office (KLEW-TV).
- Location & time: Explosion about 7:15 a.m. in a retail parking lot in front of Old Navy in Lewiston, Idaho, near the Snake River and the Washington border (KLEW-TV).
- Preliminary cause: Blast originated in the U‑Haul cargo box and involved propane; investigators currently believe it was accidental (KLEW-TV).
A deadly blast in a busy lot
At about 7:15 a.m. on Saturday, emergency crews responded after a U‑Haul box truck exploded in the parking lot of a shopping center in Lewiston, a river city on the Idaho‑Washington border. The blast occurred in front of an Old Navy store within a cluster of big‑box retailers and chain shops. The event drew a large, multi‑agency emergency response from Lewiston police and fire personnel.
Victim identified
Douglas R. Petersen, 61, of Meridian, Idaho, was the lone fatality. The Nez Perce County Coroner’s Office confirmed his identity. Local officials have not released additional biographical details or said whether Petersen was working, moving personal items, or otherwise handling equipment at the time of the explosion (KLEW-TV).
What investigators say so far
Lewiston police, the Lewiston Fire Department and the Nez Perce County Coroner’s Office led the initial response. Investigators report the explosion originated inside the cargo box of the U‑Haul and involved propane cylinders or propane‑related equipment stored there. Based on on‑scene work and early findings, authorities say they believe the blast was accidental, not intentional (KLEW-TV).
“Preliminary findings point to a propane blast in the cargo area; investigators are treating the incident as accidental while the technical probe continues,” officials said in early reporting (KLEW-TV).
Response, damage and public safety
First responders secured the scene. The U‑Haul was destroyed; debris and blast effects damaged nearby vehicles and sections of the parking area. Local reporting has not identified other serious injuries and officials say there is no evidence of terrorism or foul play at this stage. Investigators continue to examine the site and collect evidence (KLEW-TV).
What remains unknown
Authorities have not disclosed why propane was in the cargo area or whether Petersen was transporting cylinders for work, moving personal equipment, or for another reason. It is also not yet known what exactly ignited the propane — whether a leaking valve, faulty regulator or hose, electrical short, static discharge, or another ignition source. The formal investigative report and forensic results are pending.
Background on propane and safety concerns
Propane is a highly flammable liquefied petroleum gas. When it leaks into enclosed spaces and reaches a flammable concentration, even a small spark or open flame can trigger a powerful fire or explosion. In a truck cargo box, propane can pool near the floor and create an explosive atmosphere.
General safety guidance — such as transporting cylinders upright, securing them to prevent tipping, closing cylinder valves, and keeping cylinders away from ignition sources — helps frame possible scenarios investigators will evaluate. These are contextual safety points and not specific findings in this case.
Investigative steps ahead
- Examination of cylinder condition, valve integrity, hoses and regulators for signs of failure.
- Search for ignition sources: electrical shorts, static discharge, heat from engines or nearby equipment.
- Review of compliance with rules on storage and transport limits; potential involvement of state or federal hazardous‑materials specialists.
- Completion of coroner’s findings to determine formal cause of death and release of a final technical report.
Implications for California
Risk awareness: The Lewiston explosion highlights hazards that can occur in everyday public spaces. Californians who work with or transport propane — landscapers, contractors, vendors or homeowners — should follow safety rules for securing and transporting cylinders.
Business & regulatory concerns: Retail property owners and managers may review policies for parking large trucks, storage of hazardous materials, signage, and emergency access. Agencies such as Cal/OSHA and local fire marshals enforce rules for compressed gases; outreach and training for small businesses and independent contractors can reinforce best practices without excessive regulation.
Consumer responsibility & insurance: Contractors and individuals should inspect cylinders and valves, secure tanks upright, and keep tanks away from ignition sources. Property owners should confirm insurance coverage for third‑party vehicle incidents and consider tenant/vendor insurance to manage liability.
Sources and reporting
This article is based on reporting from KLEW-TV, which cited the Nez Perce County Coroner’s Office and Lewiston authorities for identification of the victim, the time and location of the blast, and early findings that the explosion involved propane and is believed accidental.
How to provide information
Authorities ask anyone who witnessed activity in the parking lot around 7:15 a.m. or who has information about the incident to contact the Lewiston Police Department.
