At Lake Wielt in Lower Saxony, unknown perpetrators broke into seven boats within the space of a few weeks and stole engines and engine parts. Several of the damaged boats were subsequently found adrift on the lake without anyone at the helm; one sank as a result of the break-in.
Four motorboats become the perpetrators’ first target
The series began with a theft in the night of 21 August 2026. Unknown individuals removed four pleasure craft from their original moorings on Lake Wielt and took them to a neighbouring lake. There, they removed the engines and stole them. The boats were subsequently left adrift on the water. The police estimated the damage at more than 40,000 euros.
According to Oliver Reiners, chairman of the Wiking Sailing Club, the motors, which were firmly bolted in place, each weighed at least 250 kilograms. This suggests the crime was premeditated, said Reiners. It remains unclear how the perpetrators removed their haul from the area around the lake.
Tampered-with boat sinks at the club jetty
On Friday 11 September, firefighters were once again called out to Wieltsee. A motorboat had sunk at a club jetty (see photo gallery). Petrol and engine oil were leaking and spreading along the jetty. The fire brigade secured the area with absorbent barriers and recovered the boat on the same day.
It later emerged that, according to the information available so far, unknown individuals had broken into the boat. They are said to have cut through hoses, opened valves and stolen parts of the engine. The police believe that this tampering caused the boat to sink. The reported damage amounts to around 45,000 euros.
Three days later, more outboard motors are stolen
The most recent case to date then occurred in September. Between 8.00 pm on Sunday evening and 7.50 am on Monday morning, two motorboats were stolen from their moorings at the Marina Wieltsee. The perpetrators removed the two outboard motors and then left the boats adrift on the River Weser.
The official police report does not specify the amount of damage, nor does it provide any details regarding the vehicles or the direction of escape. The investigation is currently focusing on the area around Lake Wielt and the Wieltsee Marina. Speaking to YACHT online, the police spokesperson explained that the perpetrators had briefly removed the boats. The outboard motors had been “dismantled elsewhere” and the boats left behind.
The police are investigating
The cases reported so far show a striking cluster: four boats affected at the end of August, one sunken and presumably tampered-with boat on 11 September, and two further boats in mid-September. This means that at least seven boats were affected within the space of a few weeks.
Despite the similar nature of the offences and the fact that they took place in the same location, the police remain cautious. “There may be links, but it would be too early at this stage to say for certain that there is a connection,” said the spokesperson. Meanwhile, the police are still in the dark as they search for clues.
"There is no update as yet, nor have we been able to identify any suspects so far."
Nor does the police regard the theft of the boats as an unusual modus operandi. The spokesperson pointed out that thefts of outboard motors at Wieltsee had already occurred in previous years. In some cases, the motors had been removed directly from the jetty, whilst in others the perpetrators had first taken the boats to another location.
Whilst the police investigation is still ongoing, the club’s chairman, Reiners, believes the incidents are definitely linked. “We are facing what appears to be an ongoing series of incidents involving a combination of theft and vandalism,” he said in a telephone conversation.
Clubs are working on additional measures
According to the chairman, the incidents have caused considerable unease amongst the Wiking Sailing Club and its members. Whilst the grounds are already lit and the jetty gates can be locked, the measures taken so far have apparently failed to prevent the spate of thefts and acts of vandalism. “We, as the committee and members, are certainly surprised by the short interval between the individual incidents,” says Reiners.
The club is now looking into further measures. Among the options under discussion are CCTV for deterrence, documentation and raising the alarm. “There are now some ideas, and consultations with companies have already taken place.” However, finding an immediate solution is difficult. The club’s extensive grounds are situated in the Weser’s floodplain. Technical installations would therefore need to be flood-proof or removable; furthermore, costs and data protection requirements must be taken into account.
The Executive Board intends first to organise the options, assess the costs and present them to the members for a decision at the next Annual General Meeting. The aim is to be better prepared for the 2027 season.
According to the Wiking Sailing Club itself, it is already in close contact with the other clubs on Lake Wielt. Joint protective measures are to be explored in the autumn. “We will certainly be meeting to discuss joint measures and then perhaps finalise them,” said Chairman Reiners. Although the other clubs are not currently affected, the sailing club does not regard this as a green light for the future.
Further articles on how to protect your outboard motors and boats:
How do you protect yourself against theft and vandalism?
Janek Struchholz
Volontär