Gas Cylinder Explosion Sparks Major Lugano Fire, May 30

By Danny Kontos

May 30, 2026

10:31 AM

2 min read

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Key Points

Gas cylinder exploded during roof insulation work on May 29 at 14:15.

Fire spread across roofing materials but stayed outside the building.

All residents evacuated safely with no injuries reported.

Material damage to building deemed extensive by cantonal police.

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A gas cylinder used for roof insulation work exploded on a residential building in Lugano’s Cassarate district on May 29 at 14:15. The blast triggered a major fire visible across the city and forced the evacuation of all residents. No injuries were reported, but authorities say material damage is extensive. The incident raises questions about safety protocols during construction work in residential areas.

How the Fire Started and Spread

A strong explosion occurred on the roof of a residential building in via Maggio around 14:15 on May 29. The blast came from a gas cylinder used during roof insulation work. Flames rapidly spread across roofing materials but remained confined to the exterior of the building. Dense black smoke covered the area and drifted toward nearby neighborhoods including Cornaredo, Viganello, and Pregassona.

Emergency Response and Evacuation

Lugano firefighters, Green Cross paramedics, and cantonal and municipal police responded with large-scale deployment. All building residents were evacuated as a precaution. Authorities ordered nearby residents to close windows immediately. The fire was extinguished around 15:00. Police temporarily closed via Maggio, via Vicari, and via Alle Scuole to emergency traffic. Rescue teams contained the flames to prevent further spread.

Damage Assessment and Investigation

No residents or workers suffered physical injury in the incident. However, cantonal police confirmed that material damage to the building is extensive. Video footage documented the incident as it unfolded. The cantonal police opened an investigation to determine the exact cause and establish responsibility for the accident.

Final Thoughts

A gas cylinder explosion during roof work caused a major fire in Lugano on May 29, forcing evacuations but causing no injuries. Authorities are investigating whether proper safety protocols were followed during the construction work.

FAQs

What caused the fire in Lugano on May 29?

A gas cylinder used for roof insulation work exploded on a residential building in via Maggio around 14:15, triggering the fire.

Were any people hurt in the Lugano fire?

No injuries or poisoning cases were reported. All residents were safely evacuated by authorities.

How long did it take to extinguish the fire?

Firefighters extinguished the blaze approximately 45 minutes after the explosion, around 15:00.

Disclaimer:
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About Author

Danny Kontos

Co Founder

Danny Kontos has been a stock investor since 2007 and co-founded Meyka in 2023. He keeps a small, focused portfolio and only moves when the numbers are hard to argue with. He has waited years on a single position before. Before Meyka, he ran a web hosting company and a mortgage lending platform, so he knows what a well-run business actually looks like under the hood. This article did not come from a news cycle. It came from someone who has been watching this space for a long time.