European shares closed flat to lower on Wednesday as investors awaited the minutes from the last Federal Reserve policy meeting.
The U.K.'s FTSE 100 closed down around 0.2 led lower. The worst performer on the index was Royal Mail. which closed more than 8 percent lower. Its shares tanked after the firm warned that rivals including Amazon were hurting its parcel delivery business and that competition from delivery firm Whistl could wipe £200 million off sales.