Inflation worries were re-ignited after consumer prices rose faster than expected in January, with Wall Street experts expecting caution from the Federal Reserve while keeping a wary eye on further tariff action from Washington.

U.S. consumer inflation ticked surprisingly higher in January, data indicated Monday, sending stocks sharply lower as price pressures stayed stubbornly elevated even before the impact of new trade tariffs put in place by President Donald Trump.

A Fed interest rate cut won’t be coming until at least September, if at all this year, following a troubling inflation report Wednesday.