India, April 22 -- European stocks traded lower on Tuesday as U.S. President Donald Trump's remarks on Federal Reserve Chair Jerome Powell reignited concerns about Fed independence and political interference.

Trump's message about non-tariff barriers also added to concerns over the trade war. The pan-European STOXX 600 dropped 0.45 percent to 504.12 as traders returned to their desks after a long holiday weekend for Good Friday and Easter.

The German DAX slipped 0.3 percent and France's CAC 40 shed half a percent while the U.K.'s FTSE 100 was up 0.2 percent.

Roche Holding AG fell about 1 percent after the Swiss pharmaceutical giant unveiled plans to invest USD 50 billion in pharmaceuticals and diagnostics in the United States over the ne...