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NewsMan arrested on suspicion of possessing firearm outside Buckingham PalaceBy The NewsroomPublished 23rd Sep 2018, 17:20 BSTUpdated 24th Sep 2018, 09:44 BST Buckingham PalaceA man has been arrested at Buckingham Palace on suspicion of possessing a firearm, Scotland Yard said.We'll bring you more as we have it.Related topics:Buckingham Palace