The Metropolitan Police said Russian German Gorbuntsov was shot with pistol. They are asking for help to find a suspect who was seen running away. He is described as being white, slim, 6 ft tall and wearing a hoodie.
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German police are investigating an online picture thought to be of two British men doing a Nazi salute at a former concentration camp.
Late sunshine here and there this evening - but more cloud for southern Scotland, northern England and Northern Ireland again.