At least four abseilers were seen descending from the room of Basel's St Jakob Park stadium with a banner protesting against Arctic oil drilling by Russian energy firm Gazprom.
Schalke, the German team playing against Basel, display the Gazprom sponsor on the chest of their playing shirts.
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Three Court of Appeal judges are analysing the latest stage of a life-support treatment dispute.
Ms Markle joined Harry and William at services in London to honour the fallen.
Thunder and hail at times across the UK. Showers becoming confined to the northwest overnight.