Like many Swedish cities, Nyköping has seen an increase in the rat population in recent years. An effective rat poison that has been banned in combination with mild winters is believed to be the cause.

But it is above all by the river and in the center that the problems have increased.

Staff on site

Helena Göransson became aware of the rat attack yesterday and sent out staff to see if there was reason to believe that there are many rats in the area.

- But we have not seen anything that indicates that. No rat nests or any other activity, she says.

- The fact that she was bitten is very uncomfortable.

She's not the only one who's surprised.

- It is extremely unusual and something I have hardly heard of, says Joakim Olsson at Anticimex.

"Do not behave like this"

He shares the view that the number of rats in society is increasing but believes that it is not possible to link to the rat attack in Nyköping.

- This goes against how a rat behaves in normal cases. If a rat feels cramped in a small space, it may behave this way but not elsewhere.

Clip: Watch Jennifer Mikkelsen talk about the rat attack

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The rat bit itself and hung on to the leg. Hear Jennifer talk about the event. Photo: Sofia Hårdänge / SVT