Hamburg (dpa / lno) - In the Allermöher See, poisonous Burgundy red algae have been detected for the first time in a Hamburg bathing water.

“The Burgundy red alga appeared for the first time in Hamburg's bathing water.

It is more widespread in southern Germany, for example in the Alpine region, ”said the spokesman for the environmental authority, Jan Dube, the“ Hamburger Abendblatt ”(Saturday).

According to the spokesman for the Bergedorf District Office, Sebastian Kloth, the algae produces toxins that can cause body reactions in humans and animals.

Dog owners in particular should therefore keep their animals away from the lake.

The district office has already put up warning signs.