Tear gas scare empties Hamburg model railway attraction and leaves 46 treated

*Event date: 2025-04-13*

Hamburg’s Miniatur Wunderland tourist attraction was evacuated after an irritant gas leak that left 46 people needing treatment at the scene and one visitor hospitalized.

The Hamburg Fire Department said it responded to an alert on Saturday at the city-center venue, where several visitors complained of eye and respiratory irritation. Firefighters arriving at the scene detected what they described as an irritant gas leak and immediately ordered the evacuation of more than 1,000 people inside the building.

The attraction is best known for what is believed to be the world’s largest model railway, and it draws large crowds. In this incident, the rapid evacuation kept the toll relatively limited: 46 people were treated on site and one person was taken to a nearby hospital. Officials said visitors were allowed back in about half an hour later after firefighters ventilated the building.

The cause has not been established. The fire department said it was unknown who was behind the leak, while a police spokesman told dpa news agency that a used canister had been found at the scene. Police have now taken over the investigation.

Even in a city used to handling busy tourist venues, the scale of the response shows how quickly an irritant gas release can force authorities into evacuation mode. Miniatur Wunderland sits in Hamburg’s city center and is among the city’s most visited attractions. The site contains miniature-scale models of well-known landmarks and world-famous settings, from Venice’s lagoon to the Grand Canyon and Neuschwanstein Castle.

The attraction’s footprint helps explain why the evacuation was so urgent. DW said the model railway covers more than 1,600 square meters and has roughly 17,000 meters of track. That size, together with the weekend visitor load, meant the incident had the potential to become far more serious if staff and firefighters had not moved quickly.

For investigators, the immediate question is whether the leak was accidental or deliberate. The current public record does not answer that. The department’s statement and the police account only establish that a used canister was found and that the investigation has been handed off to police. No suspect has been identified.

The attraction resumed operations soon after the ventilation ended, but the episode leaves a short, sharp reminder of how vulnerable crowded public venues are to small-scale chemical incidents. A single canister was enough to trigger mass evacuation, treatment on site and a police inquiry at one of Hamburg’s best-known landmarks.

For now, the confirmed facts are limited but clear: a gas release at Miniatur Wunderland prompted the evacuation of more than 1,000 people, 46 were treated, one person was hospitalized, and police are trying to determine how the canister got there and who may have left it behind.