Germany, Poland and Sweden have each announced the expulsion of one Russian diplomat.
The move is in retaliation to Moscow's expulsion of European diplomats last week for their alleged participation in protests in support of Kremlin critic Alexei Navalny.
The EU's chief diplomat is facing calls to resign after a three-day visit to Moscow last week.
Lucy Hough has more.
IN: Josep Borrell
OUT: SOC
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