European Shares Set to Open Flat on Weak US Session

European shares were set to open flat on Tuesday after a lackluster session in the United States, with investors cautious ahead of a key U.S. interest rate verdict due on Wednesday.

Financial bookmakers see Britain's FTSE 100 index opening up 4 to 9 points, Germany's DAX down 7 to up 8 and France's CAC-40 down 9 to up 5.