Bulgaria, Latvia, Lithuania, and Estonia announced on Friday that they had decided to expel a number of Russian diplomats from their respective missions in the four EU countries. Russia said the move would not go unanswered.

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The EU may fill up its underground natural gas facilities ahead of schedule, Rystad Energy reported this week. European gas stocks were around 76% full as of June 25, up from 56% in the same period last year, according to the Norway-based consultancy.