The pan-European STOXX 600 index fell 0.4% to 541.61 points, as of 09h04 CAT, and was on track to log a weekly decline. Other major regional indexes also traded lower.

Trump said on Thursday that Washington will start sending letters to countries on Friday specifying what tariff rates they will face on imports to the US. With President Donald Trump's 90-day pause on higher US tariffs ending next week, investors have taken a cautious stance as several large trading partners, including the European Union, are yet to clinch trade deals.

The EU is pushing for an "agreement in principle" with the US before the deadline. Mining-related stocks led sectoral declines with a 1.1% fall, while technology stocks lost 0.8%. Meanwhile, Trump's tax-cut legislation cleared its final hurdle in the US Congress on Thursday. Trump will sign it into law later in the day.

French train maker Alstom rose 1.1% on a $2.4 billion contract from the New York Metropolitan Transportation Authority.

--Reuters--