The recent burglary of villas has had several similarities - for example, all victims have had the same type of motorhome.
Among other things, gold, cash and jewelery have been stolen.
The police's working hypothesis is that the thieves pay attention to the motorhomes when they pass a stretch between Sundsvall and Uppsala.
In this way, they can find out that the people are away.
- Be extra vigilant.
If someone asks about the motorhome, think about why the person is extra nice to you, says Kristoffer Morén, crime coordinator in the police region North.