A motorboat has been completely burnt out at Langenargen Marina on Lake Constance. The fire brigade quickly brought the fire under control and prevented the flames from spreading to other boats or the jetty. No one was injured.
The fire on the motorboat on Lake Constance was reported to the fire brigade on Friday, 10 July 2026, at 2.19 pm. Even as the fire brigade was on its way, thick smoke could be seen rising above the marina at Langenargen.
When the emergency services arrived, the motorboat was already ablaze at its mooring. Several teams, wearing heavy breathing apparatus, set about tackling the flames. According to the fire service, they managed to extinguish the fire quickly.
The flames do not spread to neighbouring boats
The position of the burning boat within the harbour was particularly critical. There were other boats moored at the surrounding berths, and there was also a risk that the jetty might catch fire.
The fire brigade managed to prevent the fire from spreading. No one was injured in the fire. The incident report does not state whether anyone was on board the boat before the fire broke out.
The motorboat itself was badly damaged. No official figure for the extent of the damage has yet been given. Nor is there any reliable information as yet regarding the cause of the fire.
An oil barrier protects the harbour basin
Right from the start of the operation, the emergency services called in the oil spill response team from Friedrichshafen as a precaution. Oil booms were deployed around the stricken vessel.
They were intended to prevent any fuel or other operating fluids that might leak from entering the harbour basin and spreading into Lake Constance. According to the fire service, there was no danger to the lake, which is used as a drinking water reservoir.
Once the fire-fighting operations had been completed, the burnt-out motorboat was towed to the harbour crane and lifted out of the water. In addition to the Langenargen fire brigade, the operation involved, amongst others, crews from Friedrichshafen, the DLRG, the ambulance service and the water police.
A fire on board leaves crews with very little time
The cause of the fire in Langenargen remains unknown. However, this incident once again demonstrates how quickly a fire that starts out as a small blaze on a pleasure boat can spread. Flammable fittings, fuel and the technical equipment installed in confined spaces make firefighting more difficult. Added to this are smoke and toxic fumes.
In a detailed overview, BOOTE has explained, what automatic fire-extinguishing systems are available for engine compartments and how they work. Such systems are designed to detect a fire at an early stage and extinguish it with fire-suppressant before it can spread to other parts of the boat.
Portable fire extinguishers must also be within easy reach. When Test of compact fire extinguishing sprays However, it became apparent that not every handy product performs equally well with different types of fire. The choice must therefore be appropriate to the potential source of the fire and the intended fire class.
A similar incident occurred in 2025 in a port on the Moselle. There, too, the fire brigade was able to prevent the fire from spreading to other boats, although the motor yacht in question was also completely destroyed. The BOOTE report also summarises important advice on firefighting and the placement of fire extinguishers on board.
Fire safety on motorboats: what owners should check
- Are fire extinguishers easily accessible?
- Are the fire-extinguishing agents suitable for the types of fire that might occur on board?
- Are fire extinguishers and fire-suppression systems still within their maintenance intervals?
- Is the engine compartment fitted with an automatic fire-extinguishing system?
- Do all persons on board know where the fire extinguishers, the main switch and the fuel shut-off valve are located?
- Are there any smoke, gas or carbon monoxide alarms, and are they in working order?
Lars Bolle
Chief Editor Digital
