British police on Thursday arrested a British-Iranian dual national in connection with the security incident at the Fairford airbase Wednesday. Five other men initially arrested over the incidence were later released without charge on bail.

Russia launched its heaviest combined assault on Ukraine’s energy infrastructure in months on Wednesday, killing seven people and triggering emergency power cuts in Kyiv and nearby regions. The strikes came as officials warned of a difficult winter amid Russian attacks on Ukraine’s power and heating infrastructure.