Economic activity declined slightly in the US in recent weeks, indicating tariffs and elevated uncertainty are rippling across the economy, the Federal Reserve said in its Beige Book survey of regional business contacts.

U.S. economic activity has declined and higher tariff rates have put upward pressure on costs and prices in the weeks since Federal Reserve policymakers last met to set interest rates, the U.S. central bank said on Wednesday in its latest snapshot of the nation's economy.