The bloc 's leaders say the case is politically motivated and want her released .
Talk of stronger EU ties has run aground after Tymoshenko was handed a seven - year prison sentence in October for abuse of office .
The bloc 's leaders say the case is politically motivated and want Tymoshenko released .
Talk of stronger EU ties has run aground after Tymoshenko was handed a seven - year prison sentence in October for abuse of office .