France's CAC 40 Index shares in retreat over police raids in Paris

European stocks were little changed as investors assessed value after the strongest rally in six weeks, but France’s CAC 40 Index retreated after a police gun battle with suspects linked to the Paris terror attack.

Air Liquide slid the most on the French equity gauge, falling 7.4% after agreeing to purchase US rival Airgas.

The CAC 40, which jumped the most in six weeks yesterday, retreated 0.6% at the close of trading in Paris after the shootout left at least two people dead.