European shares closed slightly lower on Monday, with trade range-bound due to concerns over the upcoming U.S. Federal Reserve policy meeting and Scottish independence vote.
The pan-European FTSEurofirst 300 closed provisionally 0.1 percent lower at 1,382.
Investors remained cautious ahead of the Federal Reserve's policy announcement on Wednesday. Wall Street slipped at the open on Monday.
"U.S. data is now consistently humming...this is causing mass speculation that a language change to the (Fed's) statement is imminent," Evan Lucas, a market strategist at IG Markets, said in a research note.